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)
PDF 
ZIP