msm63182a Oki Semiconductor, msm63182a Datasheet - Page 2

• Manufacturer Part Number: msm63182a
• Description: 4-bit Microcontroller With Built-in 512-dot Matrix Lcd Drivers, Operating At 0.9 V Min. Msm63182a4-bit Microcontroller With Built-in 512-dot Matrix Lcd Drivers, Operating At 0.9 V Min.
• Manufacturer: Oki Semiconductor

• I/O ports
• Buzzer function
• LCD driver
• Reset function
• Battery check
• Power supply backup
• Timers and counter
• Interrupt sources
1 Semiconductor
Can be interfaced with external peripherals that use a different power supply that this device uses.
Number of ports
Input ports
Output ports
Input-output ports : Selectable as input with pull-up resistance/input with pull-down resistance/high-
Backup circuit (voltage multiplier) enables operation at 0.9 V minimum
Buzzer output
Buzzer output modes
Number of segments
1/1 to 1/16 duty
1/4 or 1/5 bias (regulator built-in)
Selectable as all-on mode/all-off mode/power down mode/normal display mode
Adjustable contrast
Reset through RESET pin
Power-on reset
Reset by low-speed oscillation halt
Low-voltage supply check
Criterion voltage
Watchdog timer
100 Hz timer
15-bit time base counter
External interrupt
Internal interrupt
Input port
Output port
Input-output port
Overflows in 2 sec.
Measurable in steps of 1/100 sec.
1, 2, 4, 8, 16, 32, 64 and 128 Hz signals can be read
1
1
: Selectable as input with pull-up resistance/input with pull-down resistance/high-
: Selectable as P-channel open drain output/N-channel open drain output/CMOS
impedance input
output/high-impedance output
impedance input
Selectable as P-channel open drain output/N-channel open drain output/CMOS
output/high-impedance output
1
: 2 ports 4 bits
: 4 ports 4 bits
: 3 ports 4 bits
: 0.946 to 5.461 kHz (adjustable in 15 steps)
: Intermittent sound 1, 2; simple sound; continuous sound
: 512 Max. (32 SEG
: Can be selected as 1.05 ±0.10 V, 1.30 ±0.15 V,
: 2
: 6 (watchdog timer interrupt is a nonmaskable interrupt)
2.20 ±0.20 V or 2.80 ±0.30 V
16 COM)
FEDL63182A-02
MSM63182A
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