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E2E0009-38-94 Semiconductor
Semiconductor MSM6051
GENERAL DESCRIPTION
This version: Sep. 1998 MSM6051 Previous version: Mar. 1996
Built-in Melody Circuit and LCD Driver 4-Bit Microcontroller
The MSM6051 is a low-power microcontroller manufactured in complementary metal-oxide semiconductor technology. Integrated into a single chip are ROM, RAM, crystal oscillator, voltage doubler, timer, melody circuit, LCD driver, input port, and output port. Using the on-chip ROM for application code reduces power consumption. The MSM6051 is widely used in electronic products requiring low-power operation, such as stopwatches with lap time memory, calculator watches, and handy terminals.
FEATURES
* Low power consumption * Internal ROM : 2560 14 bits * Internal RAM : 120 4 bits * Input port : 2 ports 4 bits, 1 port 1 bit * Output port : 1 port 4 bits * 4 4 key matrix input is available by using K1 to K4 and M1 to M4 * 66 LCD drivers (including 3 commons) (1/3 duty, 1/3 bias, 189 segments) * 59 instructions * Minimum instruction execution time : 91.5 ms (Display instruction cycle : 183 ms) * 1.5 V operating voltage (Can be changed to the lithium battery version by mask option) * Melody function : Up to 512 notes can be played automatically (with an envelope) * Lamp drivers * Crystal oscillator : 32.768 kHz * Chip (102 pads)
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Semiconductor
BLOCK DIAGRAM
DIN0 MELODY CIRCUIT
ACC Main
MPX
BD
DIN3 DOUT0
to
to
DATA RAM 120 4 bits A0 to A3
MPX
P REG INT A REGISTER
ACC Interrupt
DOUT3 A4 to A6
MPX
PIT REGISTER
LD M1 to M4 L0 K1 to K4
LAMP DRIVER OUTPUT PORT (M1to M4) INPUT PORT (K1 to K4) INPUT PORT (S1 to S4) INPUT PORT (OPTION)
Z C G Z C G
Main Interrupt
ALU
P REG MAIN
MPX
DISPLAY LATCH and DRIVER
SEGMENT OUT 1 to SEGMENT OUT 66
S1 to S4
MPX
FMT REGISTER
OPIN
PROGRAM COUNTER
DOUT13 to DOUT0 A0 to A11
PROGRAM ROM 2560 14 bits
INSTRUCTION DECODER
XTOUT AC2 XT XT
STACK
TIMING GENERATOR
VDD VSS1 VSS2 VSS3 VEE VCP VCM
RESET T1 T2 T3 T4 T5 32Hz
MSM6051
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Semiconductor
Pad Layout
PAD CONFIGURATION
XT XTOUT AC2 S2 S3
SEG66 VDD XT
VEE K1 K2 K3 K4 M1 M2 M3 M4 LO 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 SEG27 SEG28 SEG29 SEG30 SEG31
LD RESET T3 T1 T4 T2 T5 32Hz SEG33 SEG32 SEG35 SEG34 OPIN VDD VSS2 VSS3 VCP VCM S1 S4 VSS1 BD
SEG65 SEG64 SEG63 SEG62 SEG61 SEG60 SEG59 SEG58 SEG57 SEG56 SEG55 SEG54 SEG53 SEG52 SEG51 SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36
Chip size: 5.85 4.10 (mm)
MSM6051
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Semiconductor
MSM6051
PIN DESCRIPTIONS
Symbol VDD VSS1 VSS2 VSS3 VEE VCP, VCM XT, XT T1 to T5 RESET BD LD LO AC2 XTOUT Circuit ground potential. Power source (-1.5 V). Power source for LCD driver (-3.0 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. Power source for LCD driver (-4.5 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. Power source for internal logic (-1.5 to -3.0 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. Booster capacitor connection pins. VCP pin is connected to VCM pin through a 0.1 mF capacitor. Input and output pins of oscillator inverter. 32.768 kHz crystal is connected to these pins. Pins to test internal logic. T1, T2, T4, and T5 are pulled down to VSS1. T3 is an output. The test pins are normally open. Pin to clear internal logic pulled down to VSS1. After power is turned on, the MSM6051 can be reset by this pin. Buzzer output. Lamp output. Load data pin of M1 to M4. Reset pin for external circuit. Clock output for external circuit. Description
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Semiconductor
MSM6051
ABSOLUTE MAXIMUM RATINGS
Parameter Power Supply Voltage Input Voltage Storage Temperature Operating Temperature Symbol VSS1-VDD VIN TSTG Top Condition Ta = 25C Ta = 25C -- -- Rating -2.0 to +0.3 VSS1 - 0.3 to +0.3 -55 to +125 -20 to +75 Unit V V C C
ELECTRICAL CHARACTERISTICS
DC Characteristics
(VDD = 0 V, VSS1 = VEE = -1.55 V, VSS2 = -3.0 V, VSS3 = -4.5 V, Cl = 30 kW, Ta = 25C) Parameter VSS1 Operating Voltage Power Supply Current Oscillation Start Voltage Symbol -VSS1 IDD -VOSC IOH1 Output Current 1 COM 1 to 3 IOMH1 IOML1 IOL1 IOH2 Output Current 2 SEGMENT Output Current 3 LO Output Current 4 M1 to M4 Output Current 5 LD Output Current 6 BD Input Current 1 S1 to S4 Input Current 2 K1 to K4 Input Current 3 OPIN Built-in CD Capacitance IOMH2 IOML2 IOL2 IOH3 IOL3 IOH4 IOL4 IOH5 IOL5 IOH6 IOL6 IIH1 IIL1 IIH2 IIL2 IIH3 IIL3 CD Condition VSS1 pin VSS1 pin (Refer to Measuring Circuit) Within 5 seconds, VSS1 pin (Refer to Measuring Circuit) VOH1 = -0.2 V VOMH1 = VSS1 0.2 V VOML1 = VSS2 0.2 V VOL1 = -4.3 V VOH2 = -0.2 V VOMH2 = VSS1 0.2 V VOML2 = VSS2 0.2 V VOL2 = -4.3 V VOH3 = -0.5 V VOL3 = -1.15 V VOH4 = -0.5 V VOL4 = -1.0 V
VOH5 = -0.55 V VSS1 = -1.25 V
Min. 1.25 -- 1.45 -- -4 -4 4 -- -4 -4 4 -- 10 -- 2 -82.5 1 -51.5 -- 2 -0.2 5 -0.2 -- -0.2 --
Typ. 1.55 3.0 * -- -- -- -- -- -- -- -- -- -- -- -- -- -25 -- -30 5 20 -- 13 -- 30 -- 20
Max. 1.65 -- -- -4 4 4 -- -4 4 4 -- -10 -- -500 10 -12.5
Unit V mA V
mA
mA
mA mA
VEE = -2.0 V
VOL5 = -0.85 V V SS2 = -2.0 V VOH6 = -0.55 V VSS1 = -1.25 V
mA -- -17.2 mA -- 100 -- 26 -- 45 -- -- mA mA mA pF
VEE = -2.0 V
VOL6 = -0.85 V V SS2 = -2.0 V
VIH1 = 0 V VIL1 = -1.55 V VIH2 = 0 V VIL2 = -1.55 V VIH3 = 0 V VIL3 = -1.55 V --
*
The typ. value varies depending on the application program. 5/7
Semiconductor Measuring circuit
MSM6051
VCP VCM MSM6051 VEE XT XT
C4
Crystal 32.768 kHz C5
VDD C1
VSS1
VSS2 C2
VSS3 C3
A
V
C1, C2, C3, C4 : 0.1 mF C5 : 30 pF
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Semiconductor
MSM6051
APPLICATION CIRCUIT
LCD
C1 C2 to C5 B L
: : : :
5 to 35 pF 0.1 mF 1.5 V 20 mH
Lamp S1 S2 S3 S4 SEGMENTS COM1 to COM3 S1 S2 S3 S4 MSM6051 Crystal 32.768 kHz XT (CD = 20 pF) XT C1 VCP VCM RESET VSS2 VSS3 VSS1 B VDD VEE LD BD L
C2
C3
C4
C5
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