SyncMOS Technologies International, Inc.
SM8958A
8-Bits Micro-controller
With 32KB flash & 1KB RAM embedded
Product List
SM8958AL25, 25MHz 32KB internal flash MCU
SM8958AL33, 33MHz 32KB internal flash MCU
SM8958AC25, 25MHz 32KB internal flash MCU
SM8958AC40, 40MHz 32KB internal flash MCU
Features
Working Voltage: 3.0V ~ 3.6V For L Version.
4.5V ~ 5.5V For C Version.
General 8052 family compatible
12 clocks per machine cycle
32K byte on chip program flash
1024 byte on-chip data RAM
Three 16 bit Timers/Counters
One Watch Dog Timer
Four 8-bit I/O ports for PDIP package
Four 8-bit I/O ports + one 4-bit I/O ports for
PLCC or QFP package
Full duplex serial channel
Bit operation instruction
Industrial Level
8-bit Unsigned Division
8-bit Unsigned Multiply
BCD arithmetic
Direct Addressing
Indirect Addressing
Nested Interrupt
Two priority level interrupt
A serial I/O port
Power save modes: Idle mode and Power
down mode
Code protection function
Low EMI (inhibit ALE)
5 channel SPWM function with P1.3 ~ P1.7
Description
The SM8958A is an 8-bit single chip micro controller
with 32KB on-chip flash and 1K byte RAM embedded.
It is a derivative of the 8052 micro controller family. It
has 5-channel SPWM build-in. With its hardware
features and powerful instruction set, it’s straight
forward to make it a versatile and cost effective
controller for those applications which demand up to 32
I/O pins for PDIP package or up to 36 I/O pins for
PLCC/QFP package, or applications which need up to
32K byte flash memory for program data. To program
the on-chip flash memory, a commercial writer is
available to do it in parallel programming method.
Ordering Information
yymmv
SM8958AihhkL
yy: year, ww: month
v: version identifier{ , A, B,…}
i: process identifier {L=3.0V~3.6V,C=4.5V~ 5.5V}
hh: working clock in MHz {25, 40}
k: package type postfix {as below table}
L:PB Free identifier
{No text is Non-PB Free，”P”is PB Free}
Postfix
P
J
Q
Package
40L PDIP
44L PLCC
44L QFP
Pin / Pad
Configuration
Page 2
Page 2
Page 2
Dimension
Page 20
Page 21
Page 22
Taiwan
6F, No.10-2
Li- Hsin 1st
Road ,
Science-based Industrial Park,
Hsinchu, Taiwan 30078
TEL: 886-3-567-1820
886-3-567-1880
FAX: 886-3-567-1891
886-3-567-1894
Specifications subject to change without notice contact your sales representatives for the most recent information.
1
Ver 2.1
SM8958A
08/2006
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
