PEDL66579-03

1Semiconductor

This version: Nov. 1999

MSM66579 Family

Preliminary

16-Bit Microcontroller

1/37

GENERAL DESCRIPTION

The MSM66579 family of highly functional CMOS 16-bit single chip microcontrollers utilizes the nX-8/500S,

Oki’s proprietary CPU core.

Four channels of serial ports, consisting of two channels of synchronous serial ports with 32-byte FIFO registers

and two channels of UART/synchronous serial ports, enable easy interfacing with external peripheral LSI devices

such as an encoder/decoder or servocontroller.

A switching function permits selection of separate address and data lines or multiplexed lines for the bus interface

to correspond to various peripheral LSI devices.

With features such as a clock gear function, dual clock function, programmable pull-up ports in which individual

bits can be programmed, and a small, thin package, the MSM66579 family of microprocessors is optimally suited

for the system control of small-sized low power devices.

The flash ROM versions (MSM66Q577L and MSM66Q579L) programmable with a single 2.7V (minimum)

power supply and flash ROM version (MSM66Q577) programmable with a single 5V power supply are also

included in the family. These versions are easily adaptable to quick specification changes and to new product

revisions.

APPLICATIONS

Digital Audio Control Systems

PC peripheral Control Systems

Office Electronics Control Systems

ORDERING INFORMATION

Order Code or Product Name

Package

Remark

MSM66577L-TB

Low voltage mask ROM version

(2.4 to 3.6 V)

MSM66577-TB

5 V mask ROM version

MSM66Q577L-TB

MSM66577L flash ROM version

MSM66Q577-TB

MSM66577 flash ROM version

MSM66579L-TB

Low voltage mask ROM version

(2.4 to 3.6 V)

MSM66Q579L-TB

100-pin plastic TQFP

(TQFP 100-P-1414-0.50-K)

MSM66579L flash ROM version