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E2E0020-38-95
Semiconductor MSM6546/6546L
Semiconductor
This version: Sep. 1998 MSM6546/6546L Previous version: Mar. 1996
Operatable at 0.9 V and Built-in LCD Driver 4-Bit Microcontroller
GENERAL DESCRIPTION
MSM6546/6546L is a 4-bit, low-power microcontroller manufactured in a CMOS silicon gate process. The microcontroller can be initialized and operated at the low supply voltage of 0.9 V. This device contains a crystal oscillator circuit, voltage converter circuits, a time base counter, a ROM, a RAM, a stack RAM, I/O ports, interrupt function components, a serial I/O port, a buzzer output circuit, an up/down counter, and LCD drivers. This IC can be driven by one battery and is well suited to products that need to be operated with low power consumption.
FEATURES
* The IC can be initialized and operated even at a low voltage of 0.9 V. * Low power consumption * ROM : 4096 words 17 bits * RAM : 256 words 4 bits * I/O port Input/output port : 7 ports 4 bits Input port : 1 port 4 bits * Interrupt functions (real-time interrupt, external interrupt, and serial interrupt) * Serial I/O port : 8-bit sync communication * Buzzer output circuit * 4-bit decimal up/down counter * 54 LCD drivers (up to 200 segments can be displayed) * 75 instructions * Minimum instruction execution time : 61 ms * Operation under single 1.5 V power supply (MSM6546) A mask option allows the 3 V power supply to be used (MSM6546L). * Built-in 32.768 kHz crystal oscillator circuit * Package: 100-pin plastic QFP (QFP100-P-1420-0.65-BK) : (Product name : MSM6546-xxGS-BK, MSM6546L-xxGS-BK) Chip indicates a code number.
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CCLK BU/D
4-Bit BCD COUNTER CCNT PGCONH PGCONL
PORT7
BLOCK DIAGRAM
P7.3 P7.2 P7.1 P7.0
SCND0 SERIAL I/O PAGE S-bus FLAG ALU WORK ADRS SBFFL SBFFH ACC D-BUS
Semiconductor
P6.3 P6.2 P6.1 P6.0
SIN SOUT SCKL
SCND1
RAM (256 4 bits)
A-bus
PORT6 EIF INTERRUPT CONTROL EIRT IRQRT FIEX IRQEX PNEX IRQSIO PRIO
MODE
PORT5
P5.3 P5.2 P5.1 P5.0
PCZIOX
PORT4
P4.3 P4.2 P4.1 P4.0
PCHZX0
FRMT
PORT3 PROGRAM ROM 4096 17 bits
P3.3 P3.2 P3.1 P3.0
PROGRAM COUNTER
MPX
PCIOX0
PORT2
MDTH TEMPO
MDTL BUZZER
BD
P2.3 P2.2 P2.1 P2.0
PCHZ0
PORT1 INSTRUCTION REGISTER
P1.3 P1.2 P1.1 P1.0
PCIO0
ADDER
PORT0
P0.3 P0.2 P0.1 P0.0
SEG0
LCDCNT
LCD DRIVER
SEG53
XT
OSC
TMOUT TIME BASE COUNTER INSTRUCTION DECODER
STACK RAM VOLTAGE REGULATOR
XTB
SYSTEM CLOCK GENERATOR
VDD VSS1 VSS2 VSS3 VEE VCP VCM
MSM6546/6546L
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Semiconductor
MSM6546/6546L
PIN CONFIGURATION (TOP VIEW)
TEST1 RESET P4.3 P4.2 P4.1 P4.0 P3.3 P3.2 P3.1 P3.0 P2.3 P2.2 P2.1 P2.0 P1.3 P1.2 P1.1 P1.0 P0.3 P0.2
TEST2 TEST3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 P7.3/CCLK
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
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 29 30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
P0.1 P0.0 SEG53 SEG52 SEG51 SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 P5.0
P7.2/BU/D P7.1/SIN P7.0/SOUT P6.3/SCLK P6.2 P6.1 P6.0 XTB XT VDD VSS1 VCM VCP VSS2 VSS3 VEE BD P5.3 P5.2 P5.1
100-Pin Plastic QFP
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Semiconductor
MSM6546/6546L
PIN DESCRIPTIONS
Symbol PORT0 (P0.0 to P0.3) PORT1 (P1.1 to P1.3) PORT2 (P2.0 to P2.3) PORT3 (P3.0 to P3.3) PORT4 (P4.0 to P4.3) PORT5 (P5.0 to P5.3) PORT6 (P6.0 to P6.3) PORT7 (P7.0 to P7.3) BD RESET TEST1 TEST2 TEST3 XT XTB VDD VSS1 VSS2 VSS3 VCP VCM VEE SEG0 to SEG53 I O -- -- -- -- -- -- O I Type I/O I/O I/O I/O I/O I/O I/O Description 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor P2.0 to P2.3 External interrupt port
4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input port P6.3: SCLK P7.0: SOUT P7.1: SIN P7.2: BU/D P7.3: CCLK Shared with serial port Shared with 4-bit up/down counter
I
Tie to the negative pole of the battery when not used.
O I
Buzzer output pin Reset pin with input pull-down resistor Testing pins with input pull-down resistor; Tie to the negative pole of the battery. Connection pins for crystal oscillator 0 V power supply pin -1.5 V supply pin (power supply pin for -1.5 V operation) -3.0 V supply pin (power supply pin for -3.0 V operation) -4.5 V supply pin Connection pins for internal potential development capacitor Supply pin for internal logic (constant voltage circuit output pin) LCD driver
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Semiconductor
MSM6546/6546L
ABSOLUTE MAXIMUM RATINGS (MSM6546, 1.5 V, BUF = "0")
Parameter Power Supply Voltage (1) Power Supply Voltage (2) Power Supply Voltage (3) Input Voltage Output Voltage (1) *1, *2 Output Voltage (2) *2 Output Voltage (3) *2 Storage Temperature Symbol VSS1 VSS2 VSS3 VIN VO1 VO2 VO3 TSTG -- Ta = 25C Condition Rating -4.0 to +0.3 -7.0 to +0.3 -7.0 to +0.3 VSS1 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 VSS2 - 0.3 to +0.3 VSS3 - 0.3 to +0.3 -55 to +125 C V Unit
*1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
RECOMMENDED OPERATING CONDITIONS (MSM6546, 1.5 V, BUF = "0")
VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -1.75 to -0.9 -20 to +70 32.768 Unit V C kHz
Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
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Semiconductor
MSM6546/6546L
ELECTRICAL CHARACTERISTICS (MSM6546, 1.5 V, BUF = "0")
(VDD = 0 V, VSS1 = -1.5 V (battery voltage) , VSS2 = -3.0 V, VSS3 = -4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol IDD -VOSC -IOH1 IOL1 -IOH2 IOL2 A-IOH3 A Output Current 3 (Common Segment Output) A-IOMH3 A -IOML3 -IOL3 Input Current 1 Input Leakage Current Input Current 3 Input Voltage IIH1 AIIL A IIH3 -VIH -VIL Condition *1 Within 2 seconds VO = -0.5 V VO = -1.0 V VO = -0.5 V VO = -1.0 V VOH = -0.2 V VOMH = VSS1 0.2 V VOML = VSS2 0.2 V VOL = -4.3 V VI = 0 V, in the input state, with pull-down resistor
VI = 0 V, -1.5 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- 150 150 20 20 4 4 4 4 7 -- 70 -- 1.2 3 -- -- -- -- -- -- -- -- -- 15 -- 250 -- -- -- 0.9 -- -- -- -- -- -- -- -- 30 1 500 0.3 -- mA mA mA V PORT0 to PORT6 *2
PORT0 to PORT7*2 SIN, SOUT, SCLK
mA V mA mA
-- VSS1
PORT0 to PORT6*2 SOUT, SCLK
BD
mA
SEG0 to SEG53
VI = 0 V, with pull-down resistor --
RESET TEST1 to TEST3
All input pins
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
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Semiconductor
MSM6546/6546L
ABSOLUTE MAXIMUM RATINGS (MSM6546, 1.5 V, BUF = "1")
Parameter Power Supply Voltage (1) Power Supply Voltage (2) Power Supply Voltage (3) Input Voltage Output Voltage (1) *1, *2 Output Voltage (2) *2 Output Voltage (3) *2 Storage Temperature Symbol VSS1 VSS2 VSS3 VIN VO1 VO2 VO3 TSTG -- Ta = 25C Condition Rating -4.0 to +0.3 -7.0 to +0.3 -7.0 to +0.3 VSS1 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 VSS2 - 0.3 to +0.3 VSS3 - 0.3 to +0.3 -55 to +125 C V Unit
*1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1).
RECOMMENDED OPERATING CONDITIONS (MSM6546, 1.5 V, BUF = "1")
VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -1.75 to -0.9 -20 to +70 32.768 Unit V C kHz
Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1).
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Semiconductor
MSM6546/6546L
ELECTRICAL CHARACTERISTICS (MSM6546, 1.5 V, BUF = "1")
(VDD = 0 V, VSS1 = -1.5 V (battery voltage) , VSS2 = -3.0 V, VSS3 = -4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol IDD -VOSC -IOH1 IOL1 -IOH2 IOL2 -IOH3 Output Current 3 (Common Segment Output) A-IOMH3 A A-IOML3 A -IOL3 Input Current 1 Input Leakage Current Input Current 3 Input Voltage IIH1 AIIL A IIH3 -VIH -VIL Condition *1 Within 2 seconds VO = -0.5 V VO = -1.0 V VO = -0.5 V VO = -1.0 V VOH = -0.2 V VOMH = VSS1 0.2 V VOML = VSS2 0.2 V VOL = -4.3 V VI = 0 V, in the input state, with pull-down resistor
VI = 0 V, -1.5 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- 150 150 20 20 4 4 4 4 7 -- 70 -- 1.2 1.5 -- -- -- -- -- -- -- -- -- 15 -- 250 -- -- -- 0.9 -- -- -- -- -- -- -- -- 30 1 500 0.3 -- mA mA mA V PORT0 to PORT6 *2
PORT0 to PORT7*2 SIN, SOUT, SCLK
mA V mA mA
-- VSS1
PORT0 to PORT6*2 SOUT, SCLK
BD
mA
SEG0 to SEG53
VI = 0 V, with pull-down resistor --
RESET TEST1 to TEST3
All input pins
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1).
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Semiconductor
MSM6546/6546L
ABSOLUTE MAXIMUM RATINGS (MSM6546L, 3.0 V, BUF = "0")
Parameter Power Supply Voltage (1) Power Supply Voltage (2) Power Supply Voltage (3) Input Voltage Output Voltage (1) *2 Output Voltage (2) *1, *2 Output Voltage (3) *2 Storage Temperature Symbol VSS1 VSS2 VSS3 VIN VO1 VO2 VO3 TSTG -- Ta = 25C Condition Rating -4.0 to +0.3 -7.0 to +0.3 -7.0 to +0.3 VSS2 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 VSS2 - 0.3 to +0.3 VSS3 - 0.3 to +0.3 -55 to +125 C V Unit
*1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS1).
RECOMMENDED OPERATING CONDITIONS (MSM6546L, 3.0 V, BUF = "0")
VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -3.5 to -1.8 -20 to +70 32.768 Unit V C kHz
Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS1).
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Semiconductor
MSM6546/6546L
ELECTRICAL CHARACTERISTICS (MSM6546L, 3.0 V, BUF = "0")
(VDD = 0 V, VSS1 = -1.5 V, VSS2 = -3.0 V (battery voltage), VSS3 = -4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol IDD -VOSC -IOH1 IOL1 -IOH2 IOL2 -IOH3 Output Current 3 (Common Segment Output) A-IOMH3 A A-IOML3 A -IOL3 Input Current 1 Input Leakage Current Input Current 3 Input Voltage IIH1 AIIL A IIH3 -VIH -VIL Condition *1 Within 2 seconds VO = -0.5 V VO = -2.5 V VO = -0.5 V VO = -2.5 V VOH = -0.2 V VOMH = VSS1 0.2 V VOML = VSS2 0.2 V VOL = -4.3 V VI = 0 V, in the input state, with pull-down resistor
VI = 0 V, -3 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- 500 500 20 20 4 4 4 4 50 -- 200 -- 2.5 0.75 -- -- -- -- -- -- -- -- -- 100 -- -- 1.8 -- -- -- -- -- -- -- -- 200 1 mA mA PORT0 to PORT6 *2
PORT0 to PORT7*2 SIN, SOUT, SCLK
mA V mA mA
-- VSS2
PORT0 to PORT6*2 SOUT, SCLK
BD
mA
SEG0 to SEG53
VI = 0 V, with pull-down resistor --
750 1500 mA -- -- 0.5 -- V
RESET TEST1 to TEST3
All input pins
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
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Semiconductor
MSM6546/6546L
ABSOLUTE MAXIMUM RATINGS (MSM6546L, 3.0 V, BUF = "1")
Parameter Power Supply Voltage (1) Power Supply Voltage (2) Power Supply Voltage (3) Input Voltage Output Voltage (1) *2 Output Voltage (2) *1, *2 Output Voltage (3) *2 Storage Temperature Symbol VSS1 VSS2 VSS3 VIN VO1 VO2 VO3 TSTG -- Ta = 25C Condition Rating -4.0 to +0.3 -7.0 to +0.3 -7.0 to +0.3 VSS2 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 VSS2 - 0.3 to +0.3 VSS3 - 0.3 to +0.3 -55 to +125 C V Unit
*1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).
RECOMMENDED OPERATING CONDITIONS (MSM6546L, 3.0 V, BUF = "1")
VDD = 0 V (VSS2 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -3.5 to -0.9 -20 to +70 32.768 Unit V C kHz
Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).
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Semiconductor
MSM6546/6546L
ELECTRICAL CHARACTERISTICS (MSM6546L, 3.0 V, BUF = "1")
(VDD = 0 V, VSS1 = -1.5 V, VSS2 = -3.0 V (battery voltage), VSS3 = -4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol IDD -VOSC -IOH1 IOL1 -IOH2 IOL2 -IOH3 Output Current 3 (Common Segment Output) A-IOMH3 A A-IOML3 A -IOL3 Input Current 1 Input Leakage Current Input Current 3 Input Voltage IIH1 AIIL A IIH3 -VIH -VIL Condition *1 Within 2 seconds VO = -0.5 V VO = -2.5 V VO = -0.5 V VO = -2.5 V VOH = -0.2 V VOMH = VSS1 0.2 V VOML = VSS2 0.2 V VOL = -4.3 V VI = 0 V, in the input state, with pull-down resistor
VI = 0 V, -3 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- 500 500 20 20 4 4 4 4 50 -- 200 -- 2.5 1.5 -- -- -- -- -- -- -- -- -- 100 -- -- 0.9 -- -- -- -- -- -- -- -- 200 1 mA mA PORT0 to PORT6 *2
PORT0 to PORT7*2 SIN, SOUT, SCLK
mA V mA mA
-- VSS2
PORT0 to PORT6*2 SOUT, SCLK
BD
mA
SEG0 to SEG53
VI = 0 V, with pull-down resistor --
750 1500 mA -- -- 0.5 -- V
RESET TEST1 to TEST3
All input pins
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).
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Semiconductor
MSM6546/6546L
NOTES ON USE
Power Supply for 0.9 V Microcontroller Series (Backup Flag and Constant-Voltage Circuit) The 0.9 V microcontroller devices have a built-in constant-voltage circuit. The output of this constant-voltage circuit powers the microcontroller's internal logic circuits. Setting a backup flag (BUF) allows the input of the constant-voltage circuit to be switched to either the battery or the output generated in the voltage converter, based on the battery voltage. A battery voltage of 1.5 V or 3.0 V can be selected.
VDD (0 V) VSS1 (-1.5 V) VSS2 (-3.0 V) VSS3* (-4.5 V)
Internal logic Voltage converter Backup flag (BUF)
XT XTAL
XTB Constant voltage circuit VR
VEE (About -1.3 V) LCD driver* *The VSS3 pin is provided for the devices that contain an LCD driver.
The output (VEE) of the constant-voltage circuit is set at approximately -1.3 V. This allows the current consumed by the internal logic to be limited, irrespective of the battery voltage. However, if the input of the constant voltage circuit is below this set value (approximately -1.3 V), the output (VEE) is equal to the input. The 0.9 V microcontroller can be operated even if the internal voltage (output from the constant voltage circuit) falls to 0.9 V. Setting the backup flag allows a larger operating voltage margin despite changes in internal voltage due to noise. For example, for the 1.5 V specification, setting the backup flag to "0" causes twice the battery voltage to enter the constant-voltage circuit. Thus, even if the battery voltage falls to 0.9 V, the output voltage (VEE) is maintained at -1.3 V to allow a larger margin of operating voltage for the internal logic circuits, because 1.8 V is applied to the input of the constant-voltage circuit. Figures 1 to 4 show the internal status depending on the backup flag settings for the battery, as well as status features.
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Semiconductor (Figure 1) 1.5 V Operation (Backup Flag = "1")
VDD = 0 V VDD VB = -1.5 V
Voltage converter
MSM6546/6546L
Internal status Internal logic Operating range
The battery level VSS1 is applied to the input of the constant voltage circuit. -0.9 to -1.75 V
VSS1 VSS2 (-3.0 V) VR VEE
Voltage doubler
Current 1.5 mA* consumption Feature When the battery level is powered down, the internal circuit is powered directly by the battery.
* When the software duty is about 5%
(Figure 2) 1.5 V Operation (Backup Flag = "0")
Internal status Internal logic Operating range A doubled level of VSS2 is applied to the input of the constant voltage circuit. -0.9 to -1.75 V
VDD = 0 V VDD VB = -1.5 V
Voltage converter
VSS1 VSS2 (-3.0 V) VR VEE
Voltage doubler
Current 3 mA* consumption Feature When the battery level is powered down, a larger operating voltage margin is gained, compared to the case of Figure 1.
* When the software duty is about 5%
(Figure 3) 3.0 V Operation (Backup Flag = "1")
VDD = 0 V VDD (-1.5 V) VB = -3.0 V VSS2
Voltage converter
Internal status Internal logic Operating range
The battery level VSS2 is applied to the input of the constant voltage circuit. -0.9 to -3.5 V
VSS1
Voltage doubler
Current consumption 1.5 mA* Feature When the battery level is powered down, the internal circuit is powered directly by the battery.
VR VEE
* When the software duty is about 5%
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Semiconductor (Figure 4) 3.0 V Operation (Backup Flag = "0")
Internal status Internal logic Operating range
MSM6546/6546L
VDD = 0 V VDD (-1.5 V) VB = -3.0 V VSS2
Voltage converter
A doubled level of VSS1 is applied to the input of the constant voltage circuit. -1.8 to -3.5 V
VSS1
Voltage rise
Current 0.75 mA* consumption Feature When the battery level is powered down, a smaller operating voltage margin is gained, compared to the case of Figure 3.
VR VEE
* When the software duty is about 5%
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Semiconductor
MSM6546/6546L
PACKAGE DIMENSIONS
(Unit : mm)
QFP100-P-1420-0.65-BK
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 1.29 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
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