MSM6577-XX Datasheet, PDF (1/22 Pages) OKI electronic componets – Operatable at 0.9V and Built-in LCD Driver 4-Bit Microcontroller

E2E0022-27-Y3
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Previous version: Mar. 1996
MSM6577-xx
Operatable at 0.9V and Built-in LCD Driver 4-Bit Microcontroller
GENERAL DESCRIPTION
The MSM6577 is a 4-bit microcontroller that is fabricated in OKI's low-voltage CMOS technology,
enabling operation at 0.9 V. This device incorporates LCD drivers, 8-bit synchronous serial
ports, and a buzzer output circuit. The MSM6577 is optimized for remote-control microcontroller
applications that are portable and battery powered.
FEATURES
• Operating range
Operating frequency
: 32.768 kHz
Operating voltage
1.5 V operation : MSM6577K/N/S/U
3.0 V operation : MSM6577L/C/D/E
(See Mask Option List.)
Operating temperature
: –20 to +70°C
• Memory space
ROM
: 1536 words ¥ 17 bits
RAM
: 128 words ¥ 4 bits
• Minimum instruction execution time
: 61 ms
• I/O port
Input-output port
: 1 port ¥ 4 bits
Input only port
: 1 port ¥ 4 bits
Output only port
: 1 port ¥ 4 bits
• Serial port
: 8-bit clock synchronous type
• LCD drivers
: 28
Duty and frame frequency are selectable by the mask options.
1/3 duty, 1/3 bias
: Up to 75 segments
1/2 duty, 1/3 bias
: Up to 52 segments
• Halt release timers
:4
Timer frequency is selectable by the mask options.
• External interrupt
:4
• Buzzer output
:1
• Clock
: 32.768 kHz crystal oscillator
Oscillation starts at 0.9 V.
• Power supply voltage
: 1.5 V/3.0 V (selectable by mask
option)
(See Mask Option List)
• Packageoptions:
56-pin plastic QFP (QFP56-P-910-0.65-K)
(Product name : MSM6577 -¥¥GS-K)
56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name : MSM6577 -¥¥GS-2K)
Chip
¥¥ indicates the code number.
indicates the option code.
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