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W742S819 4-BIT TELEPHONE CONTROLLER
Table of content1. 2. 3. 4. 5. 6. 7. GENERAL DESCRIPTION ......................................................................................................... 2 FEATURES ................................................................................................................................. 2 PIN CONFIGURATION ............................................................................................................... 3 PIN DESCRIPTION..................................................................................................................... 4 BLOCK DIAGRAM ...................................................................................................................... 5 ABSOLUTE MAXIMUM RATINGS ............................................................................................. 6 DC CHARACTERISTICS ............................................................................................................ 6 7.1 DC CHARACTERISTICS: VDD-VSS=3.0V .................................................................... 6 7.2 DC CHARACTERISTICS: VDD-VSS=3.6V .................................................................... 9 AC CHARACTERISTICS ............................................................................................................ 9 APPLICATIONS INFORMATION.............................................................................................. 10 9.1 Operating Voltage ......................................................................................................... 10 9.2 Drive Abilities of OP-AMPs ........................................................................................... 10 9.3 FSK Signal Detection and FSK Demodulation ............................................................. 10
9.3.1 9.3.2 FSK Signal Detection ...................................................................................................10 FSK demodulation ........................................................................................................10
8. 9.
10.
REVISION HISTORY ................................................................................................................ 11
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Publication Release Date: Aug. 23, 2005 Revision A1
W742S819
1. GENERAL DESCRIPTION
The W742S819 is a high-performance 4-bit micro-controller (C) that provides an LCD driver and three OpAmps. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation, a 24 x 8 LCD driver, six 4-bit I/O ports (including 1 output port for LED driving), three OpAmps(Operational Amplifiers), and one channel DTMF generator. There are also five interrupt sources and 16-levels subroutine nesting for call subroutine or interrupt applications. The W742S819 operates on very low current and has two power reduction modes, that is the dual-clock slow operation and STOP mode, which help to minimize power dissipation.
2. FEATURES
Operating voltage: 2.4V - 5.5V Dual-clock operation mode (Connect to 32768 Hz crystal only) - Fslow oscillator : 32768Hz OSC - Ffast oscillator : PLL ( Phase Lock Loop ) output enable Memory - 12288 x 16 bits program ROM (including 48K x 4 bit look-up table) - 1536 x 4 bits data RAM (including 16 nibbles x 16 pages working registers) - 24 x 8 LCD data RAM 24 input/output pins - Port for input only: 1 ports/4 pins(RC) - Input/output ports: 3 ports/12 pins(RA, RB & RD) - High sink current output port for LED driving: 1 port /4 pins(RE) - Port for output only: 1 ports/4 pins(RF) Power-down mode - Hold function: no operation (excluding Fslow and Fosc oscillator) - Stop function: no operation (Fslow and Fosc oscillator are stopped) - Dual-clock slow operation mode: system is operated by 32768Hz (FOSC=Fslow and Ffast stopped) Five types of interrupts - Four internal interrupts (Divider0, Divider1, Timer 0, Timer 1) - One external interrupts (RC Port) LCD driver output - 24 segments x 8 commons - 1/8 duty, 1/3 bias driving mode by option code - 16 level software LCD contrast adjusting MFP output pin - Output is software selectable as modulating or non-modulating frequency - Works as frequency output specified by Timer 1 DTMF output pin (PLL should be enable in this function) - Output is one channel Dual Tone Multi-Frequency signal for dialing Three OpAmps(Operational Amplifiers) - Three general purpose OpAmps with positive inputs, negative inputs and outputs.
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W742S819
Two built-in 14-bit frequency dividers - Divider0: the clock source is the output of the Fosc-oscillator - Divider1: the clock source is the output of the Fslow-oscillator Two built-in 8-bit programmable countdown timers - Timer 0: one of two internal clock frequencies (FOSC/4 or FOSC/1024) can be selected - Timer 1: with auto-reload function and one of three internal clock frequencies (FOSC, FOSC/64 or Fslow) can be selected by MR1 register; and the specified frequency can be delivered to MFP pin Built-in 18/15-bit watchdog timer selectable for system reset; enable the watch dog timer or not is determined by code option Build-in Power-on reset detested circuit Powerful instruction set: 1XX instructions 16-levels subroutine (include interrupt) nesting
3. PIN CONFIGURATION
For W742S819 QFP 80 pin
/D MNRTN F C E MC P SF T V EV x SD x TD F XOO VXOPP FI UPN NT33 O P O 3 O P P 2 O P N 2 O P O 2 O P P 1 O P N 1 O P O 1 C O M 0 C C ONO MCM 1 2
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 RA0 RA1 RA2 RA3 RB0 RB1 RB2 RB3 RC0 RC1 RC2 RC3 RD0 RD1 RD2 RD3 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 CO 3 M CO 4 M COM 5 CO 6 M CO 7 M SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13
RNRRRRRRRV ECEEEFFFFS 1230123S 0
S E G 0
S E G 1
S E G 2
S E G 3
S E G 4
S E G 5
S E G 6
S E G 7
S E G 8
S E G 9
S E G 1 0
S E G 1 1
NS CE G 1 2
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Publication Release Date: Aug. 23, 2005 Revision A1
W742S819
4. PIN DESCRIPTION
SYMBOL I/O FUNCTION
XIN XOUT VXXF VF RA0-RA3
I O I I I/O
Input pin for 32.768 Hz oscillator. Connected to 32.768 KHz crystal only. Output pin for 32.768 Hz oscillator. Connected to 32.768 KHz crystal only. Regulator for PLL circuit. Connected capacitor (10 uF) to VSS. Low pass filter for PLL circuit. Connected capacitor 0.022uF to VSS. Input/Output port. Input/output mode specified by port mode 1 register (PM1). Internal pull-up resistors specified by RAM 7FEH(Refer to chapter 6.16.5) Input/Output port. Input/output mode specified by port mode 2 register (PM2). Internal pull-up resistors specified by RAM 7FFH (Refer chapter 6.16.5) 4-bit port for input only. Each pin has an independent interrupt capability. Input/Output port. Input/output mode specified by port mode 5 register (PM5). Output port only. With high sink current capacity for the LED application. Output port only. Output pin only. This pin can output modulating or nonmodulating frequency, or Timer 1 specified frequency. It can be selected by bit 0 of BUZCR (BUZCR.0). This pin can output dual-tone multi frequency signal for dialing. System reset pin with low active. LCD segment output pins. LCD common signal output pins. The LCD alternating frequency can be selected by code option. OpAmp1~3 positive input pins OpAmp1~3 negative input pins OpAmp1~3 output pins For IC testing. Connected to Vss in normal usage. Positive power supply (+). Negative power supply (-).
RB0-RB3
I/O
RC0-RC3 RD0-RD3 RE0-RE3 RF0-RF3 MFP DTMF
RES
I I/O O O O O I O O I I O I I I
SEG0-SEG23 COM0COM7 OPP1~3 OPN1~3 OPO1~3 TEST VDD VSS
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W742S819
5. BLOCK DIAGRAM
S E G 0~ S E G 23 C O M 0~ C O M 7
RAM (1536*4)
LC D PORT ACC PORT A LU PORT R C 0-3 R B 0-3 R A 0-3
ROM (12288*16
(lo ok_ up ta b le 4 8K *4 )
+ 1 (+ 2)
PC
C entral C ontrol U nit
IE F HCF HEF EVF SCR MR0 PEF SEF PR MR1
PORT
R D 0-3
PORT PORT DTMF G enerator
R E 0-3 R F 0-3 DTMF
STACK (16 Levels)
PSR0 PM0 PM1
.
DTMF DTCR
.
.
SEL
T im er 0 (8 B it)
T im er 1 (8 B it)
M odulation F req uency
MUX D ivider 1 (12/14 B it)
MFP
W atch D og (4 B it)
D ivider 0 (14 B it)
VDD VSS T im ing G enerator PL L RES XOUT X IN
+ _
+ _
+ _
OPP1
OPN1 OPO1 OPP2 OPN2 OPO2 OPP3 OPN3 OPO3
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Publication Release Date: Aug. 23, 2005 Revision A1
W742S819
6. ABSOLUTE MAXIMUM RATINGS
PARAMETER RATING UNIT
Supply Voltage to Ground Potential Applied Input/Output Voltage Power Dissipation Ambient Operating Temperature Storage Temperature
-0.3 to +7.0 -0.3 to +7.0 120 0 to +70 -55 to +150
V V mW C C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device
7. DC CHARACTERISTICS 7.1 DC CHARACTERISTICS: VDD-VSS=3.0V
(VDD-VSS = 3.0 V, Ffast = 3.6042MHz, Fslow = 32.768 KHz, Ta = 25 C, LCD on; Power-on reset circuit active, unless otherwise specified)
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Op. Voltage
VDD
No load (Ext-V) All OpAmps disabled In dual-clock normal operation. No load (Ext-V) All OpAmps disabled In dual-clock Fslow operation and Ffast is stopped No load (Ext-V) All OpAmps enabled In dual-clock Fslow operation and Ffast is stopped Hold mode No load (Ext-V) All OpAmps disabled In dual-clock normal operation
2.4
-
5.5
V
Op. Current (Crystal type)
IOP1
-
0.7
1.0
mA
Op. Current (Crystal type)
IOP3
-
-
65
A
Op. Current (Crystal type)
IOP4
-
-
75
A
Hold Current (Crystal type)
IHM1
-
-
450
A
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W742S819
DC CHARACTERISTICS: VDD-VSS=3.0V, continued
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Hold Current (Crystal type)
IHM3
Hold mode No load (Ext-V) All OpAmps disabled In dual-clock Fslow operation and Ffast is stopped Hold mode No load (Ext-V) All OpAmps enabled In dual-clock Fslow operation and Ffast is stopped Stop mode No load (Ext-V) All OpAmps disabled LCD driver should be turned off IOL = 3.5mA IOH = 3.5mA VOL = 0.9V IOL = 2.0mA IOH = 2.0mA All Seg. ON VOL = 0.4V VLCD = 0.0V VOH = 2.4V VLCD = 3.0V VOL = 0.9V VOH = 2.4V RL=5K, VDD=2.5 to 3.8V
-
31
45
A
Hold Current (Crystal type)
IHM4
-
65
75
A
Stop Current (Crystal type)
ISM1
-
8
12
A
Input Low Voltage Input High Voltage MFP Output Low Voltage MFP Output High Voltage MFP Sink Current Port RA, RB and RD Output Low Voltage Port RA, RB and RD Output high Voltage LCD Supply Current SEG0-SEG31 Sink Current (Used as LCD output) SEG0-SEG31 Drive Current (Used as LCD output) Port RE Sink Current Port RE Source Current DTMF Output DC level
VIL VIH VML VMH IML VABL VABH ILCD IOL1 IOH1 IEL IEH VTDC
VSS 0.7VDD 2.4 9 2.4 90 90 9 0.4 1.1
1.2 -
0.3VDD VDD 0.4 0.4 45 2.8
V V V V mA V V A A A mA mA V
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Publication Release Date: Aug. 23, 2005 Revision A1
W742S819
DC CHARACTERISTICS: VDD-VSS=3.0V, continued
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DTMF Distortion DTMF Output Voltage Pre-emphasis DTMF Output Sink Current Pull-up Resistor Pull-up Resistor Pull-up Resistor Input Leakage Current OPAMPs Input Resistance Input Offset Voltage Power Supply Rejection Ratio Maximum Capacitive Load Minimum Resistive Load Maximum Capacitive Load Minimum Resistive Load
THD VTO
RL=5K, VDD=2.5 to 3.8V Low group, RL=5K Col/Row VTO=0.5V Port RC Port RA Port RB VssVIN VDD
130 1 0.2 100 100 100 10 -
-30 150 2 350 350 350 -
-23 170 3 1000 1000 1000 1 25 30 20 -
dB mVrms dB mA K K K A M mV dB pF K pF K
ITL RC RA RB IIN RIN VOS PSRR CL RL CL RL
1KHz 0.1VPP ripple on VDD
40 500 1000
OP1
OP2 OP3
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W742S819
7.2 DC CHARACTERISTICS: VDD-VSS=3.6V
(VDD-VSS = 3.6 V, Ffast = 3.6042MHz, Fslow = 32.768 KHz, Ta = 25 C, LCD on; Power-on reset circuit active, unless otherwise specified)
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Op. Current (Crystal type)
IOP1
No load (Ext-V) All OpAmps disabled In dual-clock normal operation. No load (Ext-V) All OpAmps disabled In dual-clock Fslow operation and Ffast is stopped No load (Ext-V) All OpAmps enabled In dual-clock Fslow operation and Ffast is stopped Hold mode No load (Ext-V) All OpAmps disabled In dual-clock normal operation Hold mode No load (Ext-V) All OpAmps disabled In dual-clock Fslow operation and Ffast is stopped Hold mode No load (Ext-V) All OpAmps enabled In dual-clock Fslow operation and Ffast is stopped Stop mode No load (Ext-V) All OpAmps disabled LCD driver should be turned off
-
0.8
1.0
mA
Op. Current (Crystal type)
IOP3
-
-
65
A
Op. Current (Crystal type)
IOP4
-
-
85
A
Hold Current (Crystal type)
IHM1
-
-
450
A
Hold Current (Crystal type)
IHM3
-
34
45
A
Hold Current (Crystal type)
IHM4
-
75
85
A
Stop Current (Crystal type)
ISM1
-
8
12
A
8. AC CHARACTERISTICS
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Op. Frequency PLL Frequency Instruction cycle time Reset Active Width Interrupt Active Width
FOSC Ffast TI TRAW TIAW
Crystal type PLL enable One machine cycle FOSC=32.768 KHz FOSC=32.768 KHz
1 1
32768 3.6042 4/FOSC -
-
KHz MHz S S S
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Publication Release Date: Aug. 23, 2005 Revision A1
W742S819
9. APPLICATIONS INFORMATION
9.1 Operating Voltage
The chip can be operated from 2.4V-5.5V. If users have much consideration for low power operation, lower voltage supply system can be a better choice.
9.2
Drive Abilities of OP-AMPs
The OP-AMPS have 2 types according to their drive abilities. OP2 and OP3 have weaker drive abilities than which OP1 does, so OP2 and OP3 are provided for driving input port like RC.n.
9.3
FSK Signal Detection and FSK Demodulation
9.3.1 FSK Signal Detection Figure 10-1 is a typical application circuit for FSK signal detection and FSK demodulation. For purpose of signal detection, user should enable both OP1 and OP2, output low to control and sense the signal by RC.n. 9.3.2 FSK demodulation For purpose of FSK demodulation, user should enable both OP1 and OP2, output high to control, and sense the FSK signal by RC.n. and demodulate FSK by software.
Figure 9-1 Application Circuit for FSK Signal Detection and FSK demodulation
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W742S819
10. REVISION HISTORY
VERSION DATE PAGE MODIFICATION
A1
Aug. 23, 2005
-
Initial data
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
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Publication Release Date: Aug. 23, 2005 Revision A1

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