E2E0017-38-93
¡ Semiconductor
¡ Semiconductor
MSM6442
Built-in LCD Driver 4-Bit Microcontroller
This version: Sep. 1998
MSM6442
Previous version: Mar. 1996
GENERAL DESCRIPTION
The MSM6442 is a 4-bit microcontroller with a built-in LCD controller/driver, developed to
support control systems.
The MSM6442 is most suitable for various on-vehicle meters, watches, audio equipment, remote
controllers, multifunctional telephones, and instrumentation units.
FEATURES
• ROM
• RAM
• I/O port
Input-output port
: 2048 words
¥
8 bits
: 128 words
¥
4 bits
: 4 ports
¥
4 bits
1 port
¥
2 bits
Input port
: 1 port
¥
1 bit
• LCD driver
: 46 segments (static)
: 92 segments (1/2 duty)
• Stack (RAM)
: 16 levels
• Four interrupt sources (external, CLK, TBC, T/C)
• Internal counter
: 12-bit time base counter
8-bit programmable timer/event counter
• Crystal and ceramic oscillation
• 76 instructions
• Minimum instruction execution time
: 952 ns @ 4.2 MHz
• Operating range
Power supply voltage
: 4.5 to 5.5 V (@ 4.2 MHz)
3.0 to 6.0 V (@ 1 MHz)
Operating temperature
: –40 to +85°C
• Supply current (Typ.)
: 6 mA (@ 5 V, 4.2 MHz)
1 mA (@ 3 V, 1 MHz)
• Power down function
: Dependent on STOP instruction
• Package options:
80-pin plastic QFP (QFP80-P-1420-0.80-K): (Product name : MSM6442-¥¥GS-K)
80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name : MSM6442-¥¥GS-BK)
¥¥
indicates a code number.
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