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MSM63188A Datasheet(PDF) 2 Page - OKI electronic componets

Part No. MSM63188A
Description  4-Bit Microcontroller with Built-in 1024-Dot Matrix LCD Drivers and Melody Circuit,Operating at 0.9 V (Min.)
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Manufacturer  OKI [OKI electronic componets]
Direct Link  http://www.oki.com
Logo OKI - OKI electronic componets

MSM63188A Datasheet(HTML) 2 Page - OKI electronic componets

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¡ Semiconductor
MSM63188A
2/32
• Stack level
Call stack level
: 16 levels
Register stack level
: 16 levels
• I/O ports
Input ports: Selectable as input with pull-up resistance/input with pull-down resistance/
high-impedance input
Output ports: Selectable as P-channel open drain output/N-channel open drain output/
CMOS output/high-impedance output
Input-output ports: Selectable as input with pull-up resistance/input with pull-down
resistance/high-impedance input
Selectable as P-channel open drain output/N-channel open drain
output/CMOS output/high-impedance output
Can be interfaced with external peripherals that use a different power supply than this device
uses.
Number of ports:
Input port
: 2 ports ¥ 4 bits
Output port
: 6 ports ¥ 4 bits
Input-output port
: 6 ports ¥ 4 bits
• Melody output function
Melody sound frequency
: 529 to 2979 Hz
Tone length
: 63 types
Tempo
: 15 types
Note data
: Resides in the program memory
Buzzer drive signal output
: 4 kHz
• LCD driver
Number of segments
: 1024 Max. (64 SEG ¥ 16 COM)
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
• Multiplier/divider circuits
Multiplier : (8 bits) ¥ (8 bits) Æ Product (16 bits)
Divider
: (16 bits)
÷ (8 bits) Æ Quotient (16 bits), Remainder (8 bits)
• Reset function
Reset through RESET pin
Power-on reset
Reset by low-speed oscillation halt
• Battery check
Low-voltage supply check
Criterion voltage
: Can be selected as 1.05
±0.10 V, 1.30 ±0.15 V,
2.20
±0.20 V or 2.80 ±0.30 V
• Power supply backup
Backup circuit (voltage multiplier) enables operation at 0.9 V minimum


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