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MSM63182A
 4-Bit Microcontroller with Built-in 512-Dot
Matrix LCD Drivers, Operating at 0.9 V (Min.)
Documents
Description
The MSM63182A is
an enhanced version of the MSM63182 in which supply currents have been improved.
The MSM63182A is a CMOS 4-bit microcontroller with built-in 512-dot matrix
LCD drivers and operates at 0.9 V (min.). The MSM63182A is suitable for
applications such as games, toys, watches, etc. which are provided with an LCD
display.
The MSM63182A is an M6318x series mask ROM-version product of OLMS-63K
family, which employs Oki's original CPU core nX-4/250.
The MSM63P180 is the one-time-programmable ROM version of MSM63188/A, having
one-time PROM (OTP) as internal program memory.
The MSM63P180 is used to evaluate the software development.
Features
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Rich instruction set
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439 instructions
Transfer, rotate, increment/decrement,
arithmetic operations, comparison, logic operations, mask operations, bit
operations, ROM table reference, external memory transfer, stack operations,
flag operations, branch, conditional branch, call/return, control.
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Rich selection of addressing modes
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Indirect addressing of four data memory types, with current
bank register, extra bank register, HL register and XY register. |
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Data memory bank internal direct addressing mode.
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Processing speed
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Two clocks per machine cycle, with most instructions executed
in one machine cycle. |
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Minimum instruction execution time :
61 ms (@ 32.768 kHz
system clock)
1 ms (@ 2 MHz system clock)
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Clock generation circuit
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Low-speed clock : 32.768 kHz crystal oscillator |
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High-speed clock : 2 MHz (Max.) RC or ceramic oscillator
select | |
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Program memory space
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4K words |
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Basic instruction length is 16 bits/1 word
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Data memory space
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External data memory space
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64 Kbytes (expandable by using an I/O port)
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Stack level
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Call stack level : 8 levels |
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Register stack level : 16 levels
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I/O ports
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Input ports: Selectable as input with pull-up resistance/input
with pull-down resistance/ high-impedance input |
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Output ports: Selectable as P-channel open drain
output/N-channel open drain output/ CMOS output/high-impedance output |
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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 |
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Can be interfaced with external peripherals that use a
different power supply than this device uses. |
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Number of ports:
Input port : 2 ports x 4 bits
Output
port : 4 ports x 4 bits
Input-output port : 3 ports x 4 bits
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Buzzer function
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Buzzer output : 0.946 to 5.461 kHz (adjustable in 15 steps)
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Buzzer output modes : Intermittent sound 1, 2; simple sound;
continuous sound | |
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LCD driver
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Number of segments : 512 Max. (32 SEG x 16 COM) |
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1/1 to 1/16 duty |
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1/4 or 1/5 bias (regulator built-in) |
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Selectable as all-on mode/all-off mode/power down mode/normal
display mode Adjustable contrast | |
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Reset function
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Reset through RESET pin |
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Power-on reset |
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Reset by low-speed oscillation halt
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Battery check
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Low-voltage supply check |
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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 | |
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Power supply backup
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Backup circuit (voltage multiplier) enables operation at 0.9 V
minimum | |
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Timers and counter
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Watchdog timer x 1
Overflows in 2 sec. |
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100 Hz timer x 1
Measurable in steps of 1/100 sec.
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15-bit time base counter x 1
1, 2, 4, 8, 16, 32, 64, and
128 Hz signals can be read | |
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Interrupt sources
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External interrupt : 2 |
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Internal interrupt : 6 (watchdog timer interrupt is a
nonmaskable interrupt) | |
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Operating voltage
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When backup used :
0.9 to 2.7 V (Low-speed clock
operating)
1.2 to 2.7 V (Operating frequency: 300 to 500 kHz)
1.5 to 2.7 V
(Operating frequency: 200 kHz to 1 MHz) |
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When backup not used :
1.8 to 5.5 V (Operating frequency:
300 to 500 kHz)
2.2 to 5.5 V (Operating frequency: 300 kHz to 1 MHz)
2.7
to 5.5 V (Operating frequency: 200 kHz to 2 MHz)
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Package:
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128-pin plastic QFP (QFP128-P-1420-0.50-K) : (Product name:
MSM63182A-xxxGS-K) |
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Chip : (Product name: MSM63182A-xxx) xxx indicates a code
number. | |
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