Semiconductor

MSM66587 Family

OKI Original High Performance CMOS 16-Bit Microcontroller

Version 1.00, July 31, 1998

GENERAL DESCRIPTION

Preliminary

Preliminary

Preliminary

Preliminary

Preliminary

The information contained herein is subject to change without notice due to product and / or technical improvements

TYPICAL

APPLICATIONS

•

•

•

•

• CD-ROM Drives

•

•

•

•

• Magneto-Optical Drives

•

•

•

•

• Mini Disk Drives

•

•

•

•

• Floppy Disk Drives

The MSM66587 Family consists of high-performance, 16-bit CMOS single-chip microcontrollers based

on Oki's own architecture. On-chip peripherals include two switchable real-time channels, one 16-bit

PWM channel, five external interrupt input channels, one serial output channel, and an 8-bit analog-to-

digital converter. The chips are ideal for system control applications controlling decoder LSIs, digital

signal processors, and host interface LSIs in equipment such as CD-ROM drives and magneto-optical

drives. Their low-profile packages and built-in pull-up resistors, programmability at bit level, contrib-

ute to the compactness of the final design. The family includes the flash ROM version MSM66Q587,

rewritable with a +5V power supply, the one-time PROM version MSM66P587, and the ROM-less

MSM66X587.

ESSENTIAL FEATURES

D

D

D

DEE

E

EV

V

V

VIIIIC

C

C

CEE

E

E

M

M

M

MS

S

S

SM

M

M

M66

6

666

6

655

5

588

8

866

6

6

M

M

M

MS

S

S

SM

M

M

M66

6

666

6

655

5

588

8

877

7

7

M

M

M

MS

S

S

SM

M

M

M66

6

666

6

6X

X

X

X55

5

588

8

877

7

7

Operation temperature

-30 to +70

°C

Supply voltage range/

Max. int. operating frequency

+4.5 to 5.5V / f=20MHz

+2.7 to 5.5V / f=10MHz

Min. instruction execution time

100ns @20MHz (+4.5 to 5.5V)

200ns @10MHz (+2.7 to 5.5V)

Internal ROM size

48kByte

64kByte

-

Max. ext. ROM size

1MByte

Internal RAM size

2kByte

Max. ext. RAM size

1MByte

I/O Ports

80 I/Os (40 with programmable pull-up)

Timer

16-bit free-run timer x 1

Two 16-bit real-time output channels

(Choice of real-time output or toggled real-time output.

In two-channel mode one channel can be configured as

PWM output)

One 16-bit PWM

General purpose 8-bit auto-reload timer

(suitable for counting external events)

One 8-bit auto-reload counter

(doubles as serial interface's baud rate generator)

Serial port

One synchronous port

A/D converter

8-bit x 4 channels

External interrupt

non-maskable x 1, maskable x 4

Flash ROM version

MSM66Q587 (64KB Flash ROM)

OTP-ROM version

MSM66P587 (64KB OTP-ROM)

Package

100-pin TQFP (TQFP100-P-1414-0.50-K)