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MSM6422

High speed and Simple 4-Bit Microcontroller

Oki Electric Industry 

E2E0016-38-93

¡ ¡ SemicondSucetormiconductor

MSM6422

High speed and Simple 4-Bit Microcontroller

This version: SMepS.M19694822

Previous version: Mar. 1996

GENERAL DESCRIPTION

The MSM6422 is a low-power, single-chip device implemented in complementary metal-oxide

semiconductor technology.

The MSM6422 can be used in place of logic ICs configured around a main CPU, or for small-scale

systems such as home electronic equipment.

FEATURES

• ROM

: 2048 words ¥ 8 bits

• RAM

: 64 words ¥ 4 bits

• I/O port

Input-output port

: 4 ports ¥ 4 bits (pseudo bidirectional configuration)

1 port ¥ 2 bits (pseudo bidirectional configuration)

Input port

: 1 port ¥ 1 bit (combined use with an interrupt input)

• Instructions

: 63

• Two interrupt sources (1 internal, 1 external)

• Power down features

• Minimum instruction execution time : 952 ns @ 4.2 MHz clock

• Crystal and ceramic oscillation

• Single 5 V power supply

• Package options:

24-pin plastic DIP (DIP24-P-600-2.54) : (Product name : MSM6422-¥¥RS)

24-pin plastic SOP (SOP24-P-430-1.27-K) : (Product name : MSM6422-¥¥GS-K)

¥¥ indicates a code number.

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