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¡ Semiconductor

MSM65522/65P522

GENERAL DESCRIPTION

The MSM65522 is a high-performance 8-bit microcontroller that employs OKI original nX-8/50

CPU core. With a minimum instruction execution time of 400 ns (10MHz clock), the MSM65522

is capable of high-speed processing, and includes 8K bytes of program memory, 384 bytes of

data memory (RAM), timers, serial ports and an A/D converter on chip. Also available is the

MSM65P522, which replaces the on-chip program memory with one-time PROM.

FEATURES

• Operating range

Operating frequency

Operating voltage

: 2.7 to 5.5V

Operating temperature

: – 40 to +85

°C

• Memory space

Internal program memory

: 8K bytes

Internal data memory

: 384 bytes

• Minimum instruction execution time

: 400ns @ 10 MHz

• Powerful instruction set

: 81 basic instructions

8/16-bit operation instructions

Bit manipulation instructions

Compound function instructions

• Abundant addressing modes

• I/O ports

: 8-bit ¥ 3

4-bit ¥ 1

Input only port

: 8-bit ¥ 1

• Timers

: 8-bit auto-reload timer ¥ 3

(One timer is shared by the baud rate

generator. Combining the 8-bit timers,

it is possible to use the timers as a 16-bit

timer (1 channel).)

Watchdog timer ¥ 1

• Counters

: Time base counter (14-bit) ¥ 1

• Serial ports

: Shift register ¥ 1

Serial port with baud rate generator

(UART/Synchronous) ¥ 1

• A/D converter

: 8 bits ¥ 8 channels

• External interrupts

: 3

• Interrupt sources

: 11

• Package Options

42-pin plastic shrink DIP (SDIP42-P-600-1.78)

: (Product name:MSM65522-¥¥¥SS,

MSM65P522-¥¥¥SS)

42-pin plastic DIP (DIP42-P-600-2.54)

: (Product name:MSM65522-¥¥¥RS,

MSM65P522-¥¥¥RS)

44-pin plastic QFP (QFP44-P-910-0.80-2K)

: (Product name:MSM65522-¥¥¥GS-2K,

MSM65P522-¥¥¥GS-2K)

44-pin plastic QFJ (QFJ44-P-S650-1.27)

: (Product name:MSM65522-¥¥¥JS,

MSM65P522-¥¥¥JS)

¥¥¥ indicates the code number.

* Specifications are subject to change without notice.

¡ Semiconductor

MSM65522/65P522

8-Bit Microcontroller with A/D Converter

E2E1015-27-Y4

This version: Jan. 1998

Previous version: Nov. 1996