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d a t a sh eet product speci?cation supersedes data of 1995 jun 30 file under integrated circuits, ic14 1997 oct 22 integrated circuits pca84c922; pca84c923 microcontrollers for universal infrared remote transmitter applications
1997 oct 22 2 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 contents 1 features 2 general description 3 ordering information 4 block diagrams 5 pinning information 5.1 pinning 5.2 pin description 6 general operation description 6.1 system selection 6.2 key scanning 6.3 accessing command code 7 hardware modulator 7.1 on-time register 7.2 off-time register 7.3 pulse timer 7.4 pulse counter 7.5 hardware modulator control register (hmctl) 7.6 operation of the hardware modulator 8 coding table 8.1 accessing the coding table 9 watchdog timer (wdt) 10 port options 11 interrupts 11.1 external keypad wake-up and t0/ int pin interrupt 11.2 hardware modulator interrupt 11.3 internal timer/counter (t1) interrupt 12 derivative registers 13 emulation 14 limiting values 15 dc characteristics 16 ac characteristics 17 package outlines 18 soldering 18.1 introduction 18.2 sdip 18.3 so and vso 19 definitions 20 life support applications
1997 oct 22 3 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 1 features 84cxxx cpu rom, ram, i/o and keypad configurations are device dependent; see table 1 two test inputs: t0 and t1 3 single-level vectored interrupt sources: C external (t0/ int and port 1, for keypad press wake-up function) C timer/counter (ti) C hardware modulator interrupt 8-bit programmable timer/counter with 5-bit prescaler power saving idle and stop modes low power operation: 2 v hardware modulator watchdog timer on-chip oscillator: 1 to 6 mhz single supply voltage: 2.0 to 5.5 v operating temperature: - 20 to +70 c available packages: so24, so28, vso56 and sdip24. 2 general description the pca84c922a, pca84c922c, pca84c923a, pca84c923c and pca84c923d are members of the pcf84cxxxa cmos family of microcontrollers and have been designed for use in universal infrared remote commander applications. the term pca84c92x is used throughout this data sheet to refer to all devices in the range, differences between devices are shown in table 1 and also highlighted in the text. in addition to the common functions of the pcf84cxxxa family of microcontrollers the pca84c92x also provides: a hardware modulator that generates programmable pulse trains for driving an infrared led an on-chip coding table specifically for the storage of code data a modified interrupt architecture that will wake-up the cpu from the idle or stop modes when any key is pressed a watchdog timer to prevent cpu lock-up. the pca84c923d has been designed as the emulation chip for both the pca84c92x and the pca84cx22 range of microcontrollers (both ranges being pin compatible). table 1 the pca84c92x range of microcontrollers 3 ordering information function pca84c923d pca84c923c pca84c923a pca84c922c pca84c922a system rom 8 kbytes 8 kbytes 8 kbytes 8 kbytes 8 kbytes system ram 256 bytes 256 bytes 256 bytes 128 bytes 128 bytes coding table rom 16 kbytes 16 kbytes 16 kbytes 8 kbytes 8 kbytes coding table extension up to 64 kbytes no no no no maximum number of keys 189 117 81 117 81 i/o 36 20 16 20 16 emulation device pca84c923d pca84c923d pca84c923d pca84c923d pca84c923d package vso56 so28 so24 and sdip24 so28 so24 and sdip24 type number package name description version pca84c922ap sdip24 plastic shrink dual in-line package; 24 leads (400 mil) sot234-1 pca84c922at so24 plastic small outline package; 24 leads; body width 7.5 mm sot137-1 pca84c922ct so28 plastic small outline package; 28 leads; body width 7.5 mm sot136-1 PCA84C923AP sdip24 plastic shrink dual in-line package; 24 leads (400 mil) sot234-1 pca84c923at so24 plastic small outline package; 24 leads; body width 7.5 mm sot137-1 pca84c923ct so28 plastic small outline package; 28 leads; body width 7.5 mm sot136-1 pca84c923dt vso56 plastic very small outline package; 56 leads sot190-1
1997 oct 22 4 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 4 block diagrams h andbook, full pagewidth mbe347 84cxx core port 0 metal option v dd into t0/int t0/int p10 p12 p14 p16 p11 p13 p15 p17 p07 to p00 rom 16 kbytes coding table oe dp65 to dp60 address (lsb) dport 5 latch coding table control dport 6 latch dp67 to dp65 address (msb) watchdog timer 30 rom 8 kbytes ram 256 bytes oscillator hardware modulator dxale, dxwr, dxrd dao to da7 xtal1 xtal2 hmint output driver lout ilout rdd5 v ss v dd rsto t1 reset dp67 to dp60 p23 to p20 emu dp57 to dp50 fig.1 block diagram - pca84c923d.
1997 oct 22 5 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 handbook, full pagewidth mbe413 84cxx core port 0 metal option v dd t0/int t0/int p10 p12 p14 p16 p11 p13 p15 p17 p07 to p00 rom 8/16 kbytes coding table oe dp65 to dp60 address (lsb) coding table control dport 6 latch dp67 to dp65 address (msb) watchdog timer 30 rom 8 kbytes ram 128/256 bytes oscillator hardware modulator dxale, dxwr, dxrd dao to da7 xtal1 xtal2 hmint output driver lout ilout rdd5 emu v ss v dd t1 reset p23 to p20 fig.2 block diagram - pca84c922c and pca84c923c.
1997 oct 22 6 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 handbook, full pagewidth mbe414 84cxx core port 0 metal option v dd t0/int t0/int p10 p12 p14 p16 p11 p13 p15 p17 p07 to p00 rom 8/16 kbytes coding table oe dp65 to dp60 address (lsb) coding table control dport 6 latch address (msb) watchdog timer 30 rom 8 kbytes ram 128/256 bytes oscillator hardware modulator dxale, dxwr, dxrd dao to da7 xtal1 xtal2 hmint output driver lout ilout rdd5 emu v ss v dd t1 reset fig.3 block diagram - pca84c922a and pca84c923a.
1997 oct 22 7 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 5 pinning information 5.1 pinning fig.4 pin configuration of pca84c923d (vso56). handbook, halfpage pca84c923d mbe343 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 rsto ss p22 p14 p01 p00 n.c. dp56 t0/int t1 dp55 reset dp54 dp57 dp53 dd dp52 xtal2 n.c. n.c. p04 dp51 p05 dp50 p16 p20 dp60 xtal1 v v p23 p15 dp67 emu p03 n.c. n.c. n.c. lout v dp66 p10 dp65 p02 dp64 p11 dp63 p12 n.c. n.c. p07 p06 dp62 p17 dp61 into p21 p13 ss fig.5 pin configuration of pca84c922c (so28) and pca84c923c (so28). handbook, halfpage pca84c922c pca84c923c mbe342 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 p22 p14 p01 p00 t1 reset dd xtal2 xtal1 p04 p05 p16 p20 t0/int v p23 p15 p02 p03 v p10 p11 p12 p13 p07 p06 p17 p21 lout ss fig.6 pin configuration of pca84c922a (so24/sdip24) and pca84c923a (so24/sdip24). handbook, halfpage pca84c922a pca84c923a mbe341 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 p14 p01 p00 t0/int t1 reset dd xtal2 xtal1 p04 p05 p16 v p15 p02 p03 lout v p10 p11 p12 p13 p07 p06 p17 ss
1997 oct 22 8 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 5.2 pin description table 2 pca84c923d (vs056) symbol pin description p00 to p07 7, 6, 52, 51, 22, 24, 34 and 35 standard i/o port lines, generally used for keypad scanning or for lsb address lines of coding table. p10 44 port line 10 or emulation dxwr signal input. p11 41 port line 11 or emulation dxrd signal input. p12 39 port line 12 or emulation dxale signal input. p13 38 port line 13 or emulation exdi signal input. p14 to p17 4, 55, 26 and 32 standard i/o port lines, generally used for keypad sensing, the wake-up function can be removed by mask option. p20 to p23 27, 29, 3 and 56 standard i/o port lines with 10 ma sink capability. dp50 to dp57 25, 23, 17, 15, 14, 12, 9 and 5 standard i/o port lines, generally used for the data bus of coding table. dp60 to dp67 28, 31, 33, 40, 42, 43, 45 and 54 standard i/o port lines, generally used for keypad scanning or for msb address lines of coding table. rsto 1 used for emulation purposes only. this output is the result of the or operation carried out internally on the reset input and the watchdog timer reset and is connected to the reset pin of the 84c00. t0/ int 10 test pin t0 or external interrupt input. t1 11 test pin t1 or timer/counter input (t1). reset 13 active high reset pin; normally connected to v ss as power-on-reset serves the same function. xtal2 18 crystal or ceramic resonator or lc oscillator connections. xtal1 19 int o 30 used for emulation purposes only and is connected to the t0/ int pin of the 84c00. lout 47 pulse train output pin, capable of sinking 30 ma. emu 53 emulation mode control pin; for normal operation this pin is connected to v ss . v dd 16 power supply. v ss 2 and 46 ground.
1997 oct 22 9 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 table 3 pca84c922c (so28) and pca84c923c (so28) table 4 pca84c922a (so24/sdip24) and pca84c923a (so24/sdip24) symbol pin description p00 to p07 4, 3, 26, 25, 11, 12, 17, 18 standard i/o port lines, generally used for keypad scanning or for lsb address byte of code data. p10 to p17 22, 21, 20, 19, 2, 27, 13, 16 standard i/o port lines, generally used for keypad sensing, the wake-up function of p14 to p17 can be removed by mask option. p20 to p23 14, 15, 1, 28 standard i/o port lines with 10 ma sink capability. t0/ int 5 test pin t0 or external interrupt input. t1 6 test pin t1 or timer/counter input (t1). reset 7 active high reset pin; normally connected to v ss as power-on-reset serves the same function. xtal2 9 crystal or ceramic resonator or lc oscillator connections. xtal1 10 lout 24 pulse train output pin, capable of sinking 30 ma. v dd 8 power supply. v ss 23 ground. symbol pin description p00 to p07 3, 2, 23, 22, 10, 11, 14, 15 standard i/o port lines, generally used for keypad scanning or for lsb address byte of code data. p10 to p17 19,18, 17, 16, 1, 24,12,13 standard i/o port lines, generally used for keypad sensing, the wake-up function of p14 to p17 can be removed by mask option. t0/ int 4 test pin t0 or external interrupt input. t1 5 test pin t1 or timer/counter input (t1). reset 6 active high reset pin; normally connected to v ss as power-on-reset serves the same function. xtal2 8 crystal or ceramic resonator or lc oscillator connections. xtal1 9 lout 21 pulse train output pin, capable of sinking 30 ma. v dd 7 power supply. v ss 20 ground.
1997 oct 22 10 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 6 general operation description the main application for the pca84c92x is as a universal infrared remote control commander and in this role the pca84c92x offers the complete solution in one chip. the pca84c92x can be programmed to generate code data that conforms to any protocol (philips, nec, rca, thomson and siemens etc.) and is suitable for use in the remote control of tvs, vcrs, audio equipment, air-conditioning systems and in many other applications. the ability of the pca84c923d to access external memory and therefore support more protocols, makes it an extremely versatile device. 6.1 system selection different systems (tv or vcr etc.) can be controlled using one universal infrared remote control commander; switches can be used to select a specific system. however, the pca84c92x provides pin t1 for system selection purposes and software is used to detect the specific system. port lines p14 to p17 can also be used for system selection if their wake-up functions have not been selected as a mask option. when no key is pressed the scan lines (port 0) can be programmed high and the sense lines (port 1) programmed low. if a diode is connected between a sense line and scan line then the scan line will be pulled low and this can be detected by a read operation to port 0. 6.2 key scanning port lines p10 to p17 and t0/ int have been designed to be used as key sense lines. however, if the wake-up option is not selected for ports p14 to p17 then these can be used as general i/o lines. port lines p00 to p07, p20 to p23 and dp60 to dp67 can be used as key scan lines or general i/o ports. derivative port 6 also provides the high byte address for the coding table, even when used as scan lines. after a power-on-reset, the scan lines are set low and the sense lines high. if the system has entered the stop mode (by software) then when any key is depressed an external interrupt will be generated and the system will be woken-up. if the external interrupt was enabled (by using the en i instruction) before the stop mode was entered, then when the cpu is woken-up, the instruction that follows the stop instruction will be executed before diverting to the interrupt routine at vector address 03h. however, if the interrupt was not enabled before the stop mode was entered, then when the cpu is woken-up the instruction that follows the stop instruction will be executed. 6.3 accessing command code when any key is depressed its function and operation protocol are determined, then the command code is read. if the command code is stored in system rom it can be accessed using the movp a,@a instruction. if the command code resides in coding table rom it can be accessed by writing the address to dp60 to dp67 (high byte) and p00 to p07 (low byte) and then reading the data from dp50 to dp57. in normal mode, if the coding table address is within the 0000 to 1fffh range for pca84c922 devices, or within the 0000 to 3fffh range for pca84c923 devices, then the internal coding table will be accessed when derivative port 5 (address 05h) is read. in the normal mode only the pca84c923d has the ability to access external memory. if the coding table address is greater than 3fffh then the external memory will be accessed when derivative port 5 (terminal) is read. when the pca84c923d is used in the emulation mode, when derivative port 5 is read, data will always be read from dp50 to dp57 terminals. therefore, the internal coding table rom can be emulated when the pca84c923d and the bond-out chip pcf84c00 are used.
1997 oct 22 11 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 fig.7 typical remote control transmitter application using the pca84c922a or pca84c923a. handbook, full pagewidth p10 p00 v p11 p01 p12 p02 p13 p03 p14 p04 p15 p05 p16 p06 p17 p07 pca84c922a pca84c923a reset v dd xtal2 xtal1 t1 v ss mbe416 100 w 30 ma 3.0 v t0/int lout dd system selection r1
1997 oct 22 12 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 fig.8 typical remote control transmitter application using the pca84c922c or pca84c923c. handbook, full pagewidth p10 p00 v p11 p01 p12 p02 p13 p03 p20 p21 p22 p23 p14 p04 p15 p05 p16 p06 p17 p07 pca84c922c pca84c923c reset v dd xtal2 xtal1 t1 v ss mbe417 100 w 30 ma 3.0 v t0/int lout dd v dd system selection r1 r2 r3
1997 oct 22 13 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 fig.9 typical remote control transmitter application using the pca84c923d. handbook, full pagewidth p10 dp50 to dp57 p20 p21 oe v p11 p12 p13 dp60 to dp67 p14 p15 p00 to p07 p16 p17 pca84c923d reset emu v dd xtal2 xtal1 t1 v ss mbe418 100 w 30 ma 3.0 v t0/int lout dd system selection rom or eprom a0 to a7 a8 to a15 v dd r1 r2 r3
1997 oct 22 14 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 7 hardware modulator the hardware modulator used in the pca84c92x is the same as the hardware modulator used in the pca84cx22 range of microcontrollers. the function of the hardware modulator is to generate a coded pulse train which is subsequently converted into an infrared signal by an ir-led. it is this coded ir signal that controls the remote equipment. the number of pulses in the pulse train, the time between pulse train bursts and the duty cycle of a pulse are all programmable. a typical pulse train is shown in fig.10. the block diagram of the hardware modulator is shown in fig.14 and comprises: an 8-bit on-time register an 8-bit off-time register an 8-bit control register a pulse timer a 10-bit pulse counter control logic. these are described in detail in sections 7.1 to 7.5. 7.1 on-time register the duty cycle of the pulse is determined by the contents of the on-time and off-time registers. the on-time register controls the active or on period of the pulse; the off-time register controls the inactive or off period of the cycle. the 8-bit on-time register resides at address 00h and is loaded by software. the decimal value of its contents plus 2, determines the number of oscillator cycles that the lout pin is active. the active period of lout can be calculated as follows: t on decimal value held in on-time register 2 + () f osc ------------------------------------------------------------------------------------------------------------------------ = 7.2 off-time register this 8-bit register resides at address 01h and is loaded by software. the decimal value of its contents plus 2, determines the number of oscillator cycles that the lout pin is inactive. the inactive period of lout can be calculated as follows: 7.3 pulse timer the contents of the on-time and off-time registers are loaded alternately into the pulse timer. when loaded the pulse timer contents are decremented by 1 every oscillator cycle and upon reaching zero the pulse timer will be reloaded with the contents of the other register. 7.4 pulse counter the 10-bit pulse counter actually consists of two registers: the 2-bit pulse counter high register that resides at address 04h, and the 8-bit pulse counter low register that resides at address 02h. the pulse counter is loaded by software; its contents determine the number of pulses in a specific pulse train. loading with zero is not allowed. 7.5 hardware modulator control register (hmctl) the characteristics of the pulse train are initially determined by the contents of the on-time register, the off-time register and the pulse counter; however, the hmctl register allows these characteristics to be modified. the watchdog timer and derivative interrupt flag are reset via this register. t off decimal value held in off-time register 2 + () f osc --------------------------------------------------------------------------------------------------------------------------- =
1997 oct 22 15 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 table 5 hardware control register (address 03h) table 6 description of the hmctl bits 76543210 --- wres rint pwm lgp hf bit symbol description 7 to 5 - these three bits are reserved. 4 wres reset watchdog timer. this is not a ?ip-?op in the register and can only be written to. if a logic 1 is written to this bit the watchdog timer is reset. 3 rint reset interrupt. when rint = 1; the interrupt ?ag that was set by the derivative logic is cleared. the hardware modulator can only be restarted after the interrupt ?ag is cleared; this avoids a second interrupt being generated before the ?rst one has been serviced. 2 pwm pulse width modulation. when pwm = 1 and lgp = 0; the pulse counter register is ignored and a continuous pulse train is generated, this is shown in fig.13. 1 lgp long pulse. when lgp = 1; the contents of the off-time register are ignored. a single pulse is generated; its pulse width being determined as shown below. if hf = 1; this pulse is modulated with a frequency 1 4 f osc , this is shown in fig.12. 0 hf high frequency. when hf = 1; the on-time part of the generated pulse is modulated with a frequency 1 4 f osc , this is shown as case 2 in figs 11 and 12. pulse width contents of on-time register 2 + () number of pulses () 1 f osc -------- = handbook, full pagewidth off-time on-time pulse #1 pulse #2 pulse #3 interrupt end elapse time by software off-time = 4 (off-time register = 2) on-time = 2 (on-time register = 0) number of pulses = 3 start mbe345 ilout fig.10 example of ilout pulse train.
1997 oct 22 16 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 fig.11 case 1 shows a typical pulse train; case 2 shows the same pulse train after being modulated with a frequency of 1 4 f osc (hf = 1). handbook, full pagewidth f osc f osc 4 f osc 4 ilout case 1 ilout case 2 on-time register = 6 on-time pulse width = 6 2 = 8 off-time register = 10 off-time pulse width = 10 2 = 12 mbe412 start start software time interrupt to cpu number of pulses = 2 fig.12 case 1 shows a typical long pulse; case 2 shows the same long pulse after being modulated with a frequency of 1 4 f osc (hf = 1). handbook, full pagewidth f osc f osc 4 f osc 4 ilout case 1 ilout case 2 on-time register = 10 on-time pulse width = 10 2 = 12 mbe411 start software time interrupt to cpu number of pulses = 3 fig.13 continuous pulse train (pwm = 1). handbook, full pagewidth f osc f osc 4 f osc 4 ilout on-time register = 10 on-time pulse width = 10 2 = 12 off-time register = 10 off-time pulse width = 10 2 = 12 mbe410 start
1997 oct 22 17 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 7.6 operation of the hardware modulator the on-time, off-time, pulse counter high and pulse counter low registers are loaded by software. as soon as the pulse counter low register is loaded the hardware modulator is started and lout becomes active (low). simultaneously, the contents of the on-time register are loaded into the pulse timer which is then decremented by 1 every oscillator clock cycle. when the value held in the pulse timer becomes zero the contents of the pulse counter are decremented by 1 and lout becomes inactive (high). the contents of the off-time register are now loaded into the pulse timer which is decremented by 1 every oscillator clock cycle. when the value held in the pulse timer becomes zero, lout becomes active (low). one pulse cycle has now been generated. the process of alternately loading the contents of the on-time register and off-time register into the pulse timer continues until the contents of the pulse counter become zero. when this occurs exdi is asserted; an interrupt to the cpu is generated and the interrupt flag is raised stopping the operation of the hardware modulator. the programmed pulse train has now been generated. the hardware modulator can only be restarted after the interrupt flag has been cleared. the interrupt flag is cleared by writing a logic 1 to the rint bit in the hardware modulator control register. the time delay between two pulse trains is determined by software. handbook, full pagewidth mbe346 internal bus (ib0 to 7) control logic exdi dxwr dxale pulse counter high (2) pulse timer pulse counter low (8) off-time register (8) on-time register (8) control register (5) f osc ilout (8) fig.14 block diagram of the hardware modulator.
1997 oct 22 18 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 8 coding table the code data transmitted from the lout output when any key is depressed, is stored in a memory area known as the coding table. the pca84c92x range of microcontrollers have on-chip rom specifically for this use (system rom may also be used). the coding table is addressed via port 0 (the low byte address) and derivative port 6 latch (the high byte address). the pca84c922 range of devices have 8 kbytes of rom for use as a coding table and when accessing this internal memory, address lines dp65 to dp67 must be low. the pca84c923 range of devices have 16 kbytes of rom for use as a coding table and when accessing this internal memory, address lines dp66 and dp67 must be low. the coding table memory size for the pca84c923d however, can be extended up to 64 kbytes by adding external memory (rom or eprom). the external memory data bus is connected to derivative port 5. accessing the internal or external coding tables of the pca84c923d is described below. in the normal mode (emu pin low) C when derivative port 5 terminal is read, if the address lines dp66 and dp67 are low, the address will be within the internal memory boundary, and the internal coding table will be accessed. C when derivative port 5 terminal is read, if either of the address lines dp66 or dp67 is high, the address will be outside the internal memory boundary and the external memory will be accessed. the data at derivative port 5 terminal will then be read. in the emulation mode (emu pin high) C when derivative port 5 terminal is read, external memory will always be accessed. in this situation, derivative port 5 latch cannot be read. 8.1 accessing the coding table the procedure for accessing the coding table follows: 1. set all sense lines to a logic 1. 2. write the high byte address to derivative register 08 (derivative port 6 latch). 3. write the low byte address to port 0 (low byte address latch of internal coding table). 4. read derivative register 05 (derivative port 5 terminal); code data has now been retrieved. 5. repeat steps 4 and 5 to read more code data. table 7 shows a subroutine that reads the coding table and then loads code data into system ram. entry: r0 contains the starting address in system ram into which data will be loaded. r1 contains the number of bytes in the coding table which are to be read. r3 holds the coding table starting address (low byte). r4 holds the coding table starting address (high byte). exit: ((r0)), ((r0) + 1) ? ((r0) + (r1) - 1) contain the code data table 7 subroutine to access the coding table address instruction description code orl p1,#ff set all sense lines to logic 1. mov a,r4 load accumulator with the high byte of the starting address. mov d8,a write the high byte of the starting address to derivative port 6 latch. code1 mov a,r3 load accumulator with the low byte of the starting address. outl p0,a write the low byte of the starting address to port 0. mov a,d5 read code data from derivative port 5 terminal into the accumulator. mov @r0,a store code data in system ram. djnz r1,code2 if more code data is to be read jump to code 2, if not go to next instruction. ret return from subroutine to main program. code2 inc r0 increment ram address pointer. inc r3 increment low byte address of coding table. jmp code1 jump to code 1.
1997 oct 22 19 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 9 watchdog timer (wdt) the pca84c92x contains a watchdog timer that functions in the same manner as the watchdog timer used in the pca84cx22 range of microcontrollers. the purpose of the watchdog timer is to reset the microcontroller if it enters an erroneous processor state; within a reasonable period of time. erroneous processor states can be caused by noise or rfi. the watchdog timer consists of a 17-bit counter which is clocked at a frequency of 1 30 f osc . during a power-on-reset the contents of the counter are cleared. the counter contents are then incremented by 1 every 30 cycles of the oscillator clock. if the maximum count is exceeded, the counter overflows and the microcontroller is reset. in order to prevent a counter overflow and its resulting reset operation, the user program must clear the contents of the watchdog timer before its maximum count is reached. during normal processing, the contents of the watchdog timer are cleared by writing a logic 1 to the wres bit in hardware modulator control register (address 03h). the maximum time period (t p ) which the counter may run and not cause a reset operation, is calculated as shown below. in the idle mode the oscillator is still running and the watchdog timer remains active. in the stop mode however, the oscillator is stopped and the operation of the watchdog timer is halted but its contents are retained. therefore, it may be advisable for the user to clear the contents of the watchdog timer before the stop mode is entered, in order to avoid an unexpected reset operation after the device is woken-up. t p 1 f osc -------- 30 2 16 = fig.15 block diagram of the watchdog timer. handbook, full pagewidth wres hmctl register (address o3h) pwm hf r int l p g 30 power-on-reset reset clk q16 on-chip reset 17-bit counter f osc mbe415
1997 oct 22 20 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 10 port options ports can be configured using one of three mask options. the three i/o mask options are specified below. option 1 standard i/o with switched pull-up current source; this is shown in fig.16. option 2 i/o with open-drain output; this is shown in fig.17. option 3 push-pull output; this is shown in fig.18. the state of the ports and the lout pin after a power-on-reset can also be selected using mask options. all mask options are given in table 8. table 8 mask options port lines/pin s r option p00 to p07 1 or 3; notes 1 and 2 p10 to p13 x 1; note 3 p14 to p17 1; note 3 p20 to p23 dp50 to dp57 x 1 dp60 to dp67 1 or 3; notes 1, 2 and 4 lout x 2 or 3 notes to table 8 1. if diodes are used for system selection the scan lines (port 0 and derivative port 6) cannot take option 3. 2. scan lines should have the option 1r. 3. sense lines should have the option 1s. 4. only the pca84c923d has external derivative port 6 terminals and therefore this option is only valid for this device. the other members of the range have the state of their internal derivative port 6 latch fixed at 1s. fig.16 standard i/o with switched pull-up current source (option 1). handbook, full pagewidth dd mq sq sq data bus write pulse outl/orl/anl/mov in/mov orl/anl/mov i/o port line tr3 tr2 tr1 v 100 m a typical (v = 0.7 v ) med186 - 1 dd dd v ss master slave o
1997 oct 22 21 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 fig.17 i/o with open-drain output (option 2). handbook, full pagewidth dd mq sq data bus write pulse outl/orl/anl in v orl/anl i/o port line tr1 v med187 - 1 dd ss master slave fig.18 push-pull output (option 3). handbook, full pagewidth dd mq sq data bus write pulse outl/orl/anl in orl/anl i/o port line tr2 tr1 v med188 dd v ss master slave
1997 oct 22 22 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 11 interrupts the pca84c92x has three interrupt sources: 1. external keypad wake-up and t0/ int pin; vector address 03h. 2. hardware modulator; vector address 05h. 3. internal timer/counter (t1); vector address 07h. 11.1 external keypad wake-up and t0/ int pin interrupt this interrupt will wake-up the cpu from the stop mode when a high-to-low transition occurs on any port 1 pin or the t0/ int pin (see fig.1); normal program execution will continue after a 1866 clock cycle delay. if this interrupt was enabled (by using the en i instruction) before the stop mode was entered, then when the cpu is woken-up, the instruction that follows the stop instruction will be executed before diverting to the interrupt routine at vector address 03h. however, if the interrupt was not enabled before the stop mode was entered, then when the cpu is woken-up the instruction that follows the stop instruction will be executed. 11.2 hardware modulator interrupt when a complete pulse train has been transmitted by the hardware modulator, it generates an interrupt to the cpu by asserting exdi and the operation of the hardware modulator is halted. this derivative interrupt is shared with the sio interrupt of the pcf84cxxxa family; both use vector address 05h. the hardware modulator interrupt is enabled using the instruction en si and is disabled using the dis si instruction. 11.3 internal timer/counter (t1) interrupt the timer/counter and its interrupt are common to other members of the pcf84cxxxa family; all operate in a similar manner. the timer/counter interrupt is enabled using the instruction en tcnt1 and is disabled using the dis tcnt1 instruction. 12 derivative registers the derivative registers residing at addresses 00 to 04h are dedicated to the hardware modulator; these registers are also common to the pca84cx22 range of microcontrollers. the derivative registers residing at addresses 05 to 08h are used for accessing the coding table. the derivative registers memory map is shown in table 9. when the coding table is accessed data will be read from derivative port 5 terminal (address 05h) regardless of whether the internal or external coding table was addressed. details of accessing the internal or external coding tables are given in section 8. as derivative port 6 latch is also connected to the high byte address of the internal coding table, writing data to derivative port 6 latch (address 08h) also addresses the coding table.
1997 oct 22 23 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 table 9 derivative registers memory map (see note 1) notes 1. values within parenthesis show the bit state after a reset operation. x denotes an undefined state and mo denotes the sta te is selected by mask option. 2. these bits are write only. addr (hex) register 7 6 5 4 3 2 1 0 r/w 00 on-time on7 (x) on6 (x) on5 (x) on4 (x) on3 (x) on2 (x) on1 (x) on0 (x) r/w 01 off-time off7 (x) off6 (x) off5 (x) off4 (x) off3 (x) off2 (x) off1 (x) off0 (x) r/w 02 pulse counter low (pulow) pul7 (x) pul6 (x) pul5 (x) pul4 (x) pul3 (x) pul2 (x) pul1 (x) pul0 (x) r/w 03 hardware modulator control (hmctl) --- wres (2) (x) rint (2) (x) pwm (x) lgp (x) hf (x) r/w 04 pulse counter high (puhigh) ------ pul9 (x) pul8 (x) r/w 05 derivative port 5 (terminal) dp57/md7 (x) dp56/md6 (x) dp55/md5 (x) dp54/md4 (x) dp53/md3 (x) dp52/md2 (x) dp51/md1 (x) dp50/md0 (x) r 06 derivative port 6 (terminal) dp67 (x) dp66 (x) dp65 (x) dp64 (x) dp63 (x) dp62 (x) dp61 (x) dp60 (x) r 07 derivative port 5 (latch) dp57 (1) dp56 (1) dp55 (1) dp54 (1) dp53 (1) dp52 (1) dp51 (1) dp50 (1) r/w 08 derivative port 6 (latch) dp67/ma15 (mo) dp66/ma14 (mo) dp65/ma13 (mo) dp64/ma12 (mo) dp63/ma11 (mo) dp62/ma10 (mo) dp61/ma9 (mo) dp60/ma8 (mo) r/w
1997 oct 22 24 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 13 emulation the pca84c923d can be used as the emulation chip for both the pca84c92x and pca84cx22 ranges of microcontrollers. the emulation system is shown in fig.19. a 64 kbyte eprom (27c256) is used as the coding table and stores all data code. the eprom should be removed when members of the pca84cx22 range are being emulated. the pca84c923d has two additional outputs: into and rsto which are used for emulation purposes only. the into output is the result of the and operation carried out internally on the t0/ int and port 1 inputs; this is shown in fig.1. the rsto output is the result of the or operation carried out internally on the reset input and the watchdog timer reset; this is also shown in fig.1. the into and rsto pins of the pca84c923d are connected to the t0/ int and reset pins of the bond-out chip, respectively. the reset and t0/int inputs are connected to the corresponding pins of the pca84c923d (in other 84cxxx emulation systems they are connected to the corresponding pins of the pcf84c00). in the emulation mode, port lines p10 to p13 of the pca84c923d are used as the inputs for derivative control signals dxwr, dxrd, dxale and exdin. therefore, port lines p20 to p23 (which are anded internally to emulate the wake-up function of port lines p10 to p13) are connected to port lines p10 to p13 of the bond-out chip. if port lines p14 to p17 of the pca84c923d have been masked for the wake-up function, then they must not be connected to the corresponding pins of the bond-out chip. however, these sets of pins can be connected if the wake-up option has not been selected. when the pca84c923d is used as the emulation chip all ports should have the mask option 1s. after a power-on-reset the only data that can be written to derivative port 5 is ffh. when the pcf84c00 is used for emulation purposes its ports should have the mask option 1s. however, as some ports may be used as scan lines (for example port 1 and port 6) they will have mask options of 1r or 3r. in this case, after a power-on-reset, these ports should have 00h written to them.
1997 oct 22 25 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 n dbook, full pagewidth d00 to d07 a00 to a12 pcf84c00 (bond-out chip of 84cxx) pca84c923d v clk v ss v dd v xtal1 t1 emu ss v dd dd v ss p10 p11 p12 p13 p00 to p07 system rom emulation (eprom or emulation ram) coding table emulation (64 kbyte eprom, 27c256) xtal1 xtal2 t1 p20 to p23 p00 to p07 p14 to p17 p10 p11 p12 p13 into rsto p23 p22 p21 p20 p14 to p17 dp50 to dp57 dp60 to dp67 reset t0/int lout reset dxrd dxale psen exdi dxwr t0/int oe a0 to a7 a8 to a15 d0 to d7 xtal1 xtal2 p20 to p23 p00 to p07 p10 to p17 p50 to dp57 p60 to dp67 t0/int lout reset t1 mbe344 fig.19 emulation circuit of pca84c922 and pca84c923.
1997 oct 22 26 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 14 limiting values in accordance with the absolute maximum rating system (iec 34). symbol parameter min. max. unit v dd supply voltage - 0.5 +7.0 v v i all input voltages on any pin with respect to ground (v ss ) - 0.5 v dd + 0.5 v i oh maximum source current for all port lines -- 5.0 ma i ol maximum sink current for all port lines - 5.0 ma p tot total power dissipation - 500 mw t amb operating ambient temperature - 20 +70 c t stg storage temperature - 55 +125 c
1997 oct 22 27 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 15 dc characteristics v dd =5v 10%; v ss =0v; t amb = - 25 to +50 c; all voltages with respect to v ss ; unless otherwise speci?ed. note 1. f xtal = 3 mhz. symbol parameter conditions min. typ. max. unit supply v dd operating supply voltage 2.0 3.0 5.5 v i dd operating supply current v dd =3v;f xtal = 3 mhz - 0.4 0.9 ma v dd =5v;f xtal = 3 mhz - 0.9 1.8 ma i dd(id) supply current idle mode v dd =3v;f xtal = 3 mhz - 0.2 0.4 ma v dd =5v;f xtal = 3 mhz - 0.25 0.5 ma i dd(st) supply current stop mode v dd =2v; t amb =25 c; note 1 - 1.2 2.4 m a v dd =2v; t amb =50 c; note 1 -- 10.0 m a v dd =3v; t amb =25 c; note 1 - 1.2 2.4 m a v dd =3v; t amb =50 c; note 1 -- 10.0 m a v dd =5v; t amb =25 c; note 1 - 1.2 2.4 m a v dd =5v; t amb =50 c; note 1 -- 10.0 m a inputs emu; reset; t0/intn; t1; p00 to p07; p!0 to p17; p20 to p23; dp50 to dp57 and dp60 to dp67 v il low level input voltage 0 - 0.3v dd v v ih high level input voltage 0.7v dd - v dd v i li input leakage current v ss < v i < v dd -- 1 m a outputs p00 to p07; p10 to p17; dp50 to dp57; dp60 to dp67; intn0 and rsto i ol low level output sink current v dd =5v; v o = 0.4 v - 12 - ma i oh1 high level pull-up output source current v dd =5v; v o = 0.7v dd - 40 - 100 -m a v dd =5v; v o =v ss -- 140 - 400 m a i oh2 high level push-pull output source current v dd =5v; v o =v dd - 0.4 v -- 7.0 - ma outputs p20 to p23 i ol low level output sink current v dd =3v; v o = 0.4 v 10 -- ma i oh1 high level pull-up output source current v dd =5v; v o = 0.7v dd - 40 - 100 -m a v dd =5v; v o =v ss -- 140 - 400 m a i oh2 high level push-pull output source current v dd =5v; v o =v dd - 0.4 v -- 7.0 - ma output lout i ol low level output sink current v dd =2v; v o =1v 30 -- ma i oh high level output source current v dd =2v; v o = 1.6 v - 1.6 -- ma
1997 oct 22 28 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 16 ac characteristics symbol parameter conditions min. typ. max. unit f xtal crystal oscillator frequency v dd = 2.5 to 5.5 v 1 - 6 mhz v dd =2to5.5v 1 - 4.5 mhz transconductance g ml option low v dd = 5 v 0.3 0.7 1.4 ms g mm option medium v dd = 5 v 0.9 1.6 3.2 ms g mh option high v dd = 5 v 3 4.5 9.0 ms rf feedback resistor 0.3 1 3 m w
1997 oct 22 29 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 17 package outlines unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec eiaj mm inches 0.3 0.1 3.0 2.8 0.25 0.42 0.30 0.22 0.14 21.65 21.35 11.1 11.0 0.75 15.8 15.2 1.45 1.30 0.90 0.55 7 0 o o 0.1 0.1 dimensions (inch dimensions are derived from the original mm dimensions) 1.6 1.4 sot190-1 96-04-02 97-08-11 w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a x (a ) 3 a y 56 29 28 1 pin 1 index 0.012 0.004 0.12 0.11 0.017 0.012 0.0087 0.0055 0.85 0.84 0.44 0.43 0.0295 2.25 0.089 0.62 0.60 0.057 0.051 0.035 0.022 0.004 0.2 0.008 0.004 0.063 0.055 0.01 0 5 10 mm scale vso56: plastic very small outline package; 56 leads sot190-1 a max. 3.3 0.13 note 1. plastic or metal protrusions of 0.3 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included.
1997 oct 22 30 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec eiaj mm inches 2.65 0.30 0.10 2.45 2.25 0.49 0.36 0.32 0.23 18.1 17.7 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.1 0.4 sot136-1 x 14 28 w m q a a 1 a 2 b p d h e l p q detail x e z c l v m a e 15 1 (a ) 3 a y 0.25 075e06 ms-013ae pin 1 index 0.10 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.71 0.69 0.30 0.29 0.050 1.4 0.055 0.419 0.394 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 0 5 10 mm scale so28: plastic small outline package; 28 leads; body width 7.5 mm sot136-1 95-01-24 97-05-22
1997 oct 22 31 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec eiaj mm inches 2.65 0.30 0.10 2.45 2.25 0.49 0.36 0.32 0.23 15.6 15.2 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.1 0.4 sot137-1 x 12 24 w m q a a 1 a 2 b p d h e l p q detail x e z c l v m a 13 (a ) 3 a y 0.25 075e05 ms-013ad pin 1 index 0.10 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.61 0.60 0.30 0.29 0.050 1.4 0.055 0.419 0.394 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 e 1 0 5 10 mm scale so24: plastic small outline package; 24 leads; body width 7.5 mm sot137-1 95-01-24 97-05-22
1997 oct 22 32 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 unit b 1 cee m h l references outline version european projection issue date iec jedec eiaj mm dimensions (mm are the original dimensions) sot234-1 92-11-17 95-02-04 b max. w m e e 1 1.3 0.8 0.53 0.40 0.32 0.23 22.3 21.4 9.1 8.7 3.2 2.8 0.18 1.778 10.16 10.7 10.2 12.2 10.5 1.6 4.7 0.51 3.8 m h c (e ) 1 m e a l seating plane a 1 w m b 1 e d a 2 z 24 1 13 12 b e pin 1 index 0 5 10 mm scale note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. (1) (1) d (1) z a max. 12 a min. a max. sdip24: plastic shrink dual in-line package; 24 leads (400 mil) sot234-1
1997 oct 22 33 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 18 soldering 18.1 introduction there is no soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. however, wave soldering is not always suitable for surface mounted ics, or for printed-circuits with high population densities. in these situations reflow soldering is often used. this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our ic package databook (order code 9398 652 90011). 18.2 sdip 18.2.1 s oldering by dipping or by wave the maximum permissible temperature of the solder is 260 c; solder at this temperature must not be in contact with the joint for more than 5 seconds. the total contact time of successive solder waves must not exceed 5 seconds. the device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (t stg max ). if the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. 18.2.2 r epairing soldered joints apply a low voltage soldering iron (less than 24 v) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. if the temperature of the soldering iron bit is less than 300 c it may remain in contact for up to 10 seconds. if the bit temperature is between 300 and 400 c, contact may be up to 5 seconds. 18.3 so and vso 18.3.1 r eflow soldering reflow soldering techniques are suitable for all so and vso packages. reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. several techniques exist for reflowing; for example, thermal conduction by heated belt. dwell times vary between 50 and 300 seconds depending on heating method. typical reflow temperatures range from 215 to 250 c. preheating is necessary to dry the paste and evaporate the binding agent. preheating duration: 45 minutes at 45 c. 18.3.2 w ave soldering wave soldering techniques can be used for all so and vso packages if the following conditions are observed: a double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. the longitudinal axis of the package footprint must be parallel to the solder flow. the package footprint must incorporate solder thieves at the downstream end. during placement and before soldering, the package must be fixed with a droplet of adhesive. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. the package can be soldered after the adhesive is cured. maximum permissible solder temperature is 260 c, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 c within 6 seconds. typical dwell time is 4 seconds at 250 c. a mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. 18.3.3 r epairing soldered joints fix the component by first soldering two diagonally- opposite end leads. use only a low voltage soldering iron (less than 24 v) applied to the flat part of the lead. contact time must be limited to 10 seconds at up to 300 c. when using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 c.
1997 oct 22 34 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 19 definitions 20 life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation.
1997 oct 22 35 philips semiconductors product speci?cation microcontrollers for universal infrared remote transmitter applications pca84c922; pca84c923 notes
internet: http://www.semiconductors.philips.com philips semiconductors C a worldwide company ? philips electronics n.v. 1997 sca55 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owne r. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reli able and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not con vey nor imply any license under patent- or other industrial or intellectual property rights. netherlands: postbus 90050, 5600 pb eindhoven, bldg. vb, tel. +31 40 27 82785, fax. +31 40 27 88399 new zealand: 2 wagener place, c.p.o. box 1041, auckland, tel. +64 9 849 4160, fax. +64 9 849 7811 norway: box 1, manglerud 0612, oslo, tel. +47 22 74 8000, fax. +47 22 74 8341 philippines: philips semiconductors philippines inc., 106 valero st. salcedo village, p.o. box 2108 mcc, makati, metro manila, tel. +63 2 816 6380, fax. +63 2 817 3474 poland: ul. lukiska 10, pl 04-123 warszawa, tel. +48 22 612 2831, fax. +48 22 612 2327 portugal: see spain romania: see italy russia: philips russia, ul. usatcheva 35a, 119048 moscow, tel. +7 095 755 6918, fax. +7 095 755 6919 singapore: lorong 1, toa payoh, singapore 1231, tel. +65 350 2538, fax. +65 251 6500 slovakia: see austria slovenia: see italy south africa: s.a. philips pty ltd., 195-215 main road martindale, 2092 johannesburg, p.o. box 7430 johannesburg 2000, tel. +27 11 470 5911, fax. +27 11 470 5494 south america: rua do rocio 220, 5th floor, suite 51, 04552-903 s?o paulo, s?o paulo - sp, brazil, tel. +55 11 821 2333, fax. +55 11 829 1849 spain: balmes 22, 08007 barcelona, tel. +34 3 301 6312, fax. +34 3 301 4107 sweden: kottbygatan 7, akalla, s-16485 stockholm, tel. +46 8 632 2000, fax. +46 8 632 2745 switzerland: allmendstrasse 140, ch-8027 zrich, tel. +41 1 488 2686, fax. +41 1 481 7730 taiwan: philips semiconductors, 6f, no. 96, chien kuo n. rd., sec. 1, taipei, taiwan tel. +886 2 2134 2865, fax. +886 2 2134 2874 thailand: philips electronics (thailand) ltd., 209/2 sanpavuth-bangna road prakanong, bangkok 10260, tel. +66 2 745 4090, fax. +66 2 398 0793 turkey: talatpasa cad. no. 5, 80640 gltepe/istanbul, tel. +90 212 279 2770, fax. +90 212 282 6707 ukraine : philips ukraine, 4 patrice lumumba str., building b, floor 7, 252042 kiev, tel. +380 44 264 2776, fax. +380 44 268 0461 united kingdom: philips semiconductors ltd., 276 bath road, hayes, middlesex ub3 5bx, tel. +44 181 730 5000, fax. +44 181 754 8421 united states: 811 east arques avenue, sunnyvale, ca 94088-3409, tel. +1 800 234 7381 uruguay: see south america vietnam: see singapore yugoslavia: philips, trg n. pasica 5/v, 11000 beograd, tel. +381 11 625 344, fax.+381 11 635 777 for all other countries apply to: philips semiconductors, marketing & sales communications, building be-p, p.o. box 218, 5600 md eindhoven, the netherlands, fax. +31 40 27 24825 argentina: see south america australia: 34 waterloo road, north ryde, nsw 2113, tel. +61 2 9805 4455, fax. +61 2 9805 4466 austria: computerstr. 6, a-1101 wien, p.o. box 213, tel. +43 160 1010, fax. +43 160 101 1210 belarus: hotel minsk business center, bld. 3, r. 1211, volodarski str. 6, 220050 minsk, tel. +375 172 200 733, fax. +375 172 200 773 belgium: see the netherlands brazil: see south america bulgaria: philips bulgaria ltd., energoproject, 15th floor, 51 james bourchier blvd., 1407 sofia, tel. +359 2 689 211, fax. +359 2 689 102 canada: philips semiconductors/components, tel. +1 800 234 7381 china/hong kong: 501 hong kong industrial technology centre, 72 tat chee avenue, kowloon tong, hong kong, tel. +852 2319 7888, fax. +852 2319 7700 colombia: see south america czech republic: see austria denmark: prags boulevard 80, pb 1919, dk-2300 copenhagen s, tel. +45 32 88 2636, fax. +45 31 57 0044 finland: sinikalliontie 3, fin-02630 espoo, tel. +358 9 615800, fax. +358 9 61580920 france: 4 rue du port-aux-vins, bp317, 92156 suresnes cedex, tel. +33 1 40 99 6161, fax. +33 1 40 99 6427 germany: hammerbrookstra?e 69, d-20097 hamburg, tel. +49 40 23 53 60, fax. +49 40 23 536 300 greece: no. 15, 25th march street, gr 17778 tavros/athens, tel. +30 1 4894 339/239, fax. +30 1 4814 240 hungary: see austria india: philips india ltd, band box building, 2nd floor, 254-d, dr. annie besant road, worli, mumbai 400 025, tel. +91 22 493 8541, fax. +91 22 493 0966 indonesia: see singapore ireland: newstead, clonskeagh, dublin 14, tel. +353 1 7640 000, fax. +353 1 7640 200 israel: rapac electronics, 7 kehilat saloniki st, po box 18053, tel aviv 61180, tel. +972 3 645 0444, fax. +972 3 649 1007 italy: philips semiconductors, piazza iv novembre 3, 20124 milano, tel. +39 2 6752 2531, fax. +39 2 6752 2557 japan: philips bldg 13-37, kohnan 2-chome, minato-ku, tokyo 108, tel. +81 3 3740 5130, fax. +81 3 3740 5077 korea: philips house, 260-199 itaewon-dong, yongsan-ku, seoul, tel. +82 2 709 1412, fax. +82 2 709 1415 malaysia: no. 76 jalan universiti, 46200 petaling jaya, selangor, tel. +60 3 750 5214, fax. +60 3 757 4880 mexico: 5900 gateway east, suite 200, el paso, texas 79905, tel. +9-5 800 234 7381 middle east: see italy printed in the netherlands 457027/00/02/pp36 date of release: 1997 oct 22 document order number: 9397 750 02973

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