SyncMOS Technologies International, Inc.
SM8958A
8-Bits Micro-controller
With 32KB flash & 1KB RAM embedded
Features
Product List
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Working Voltage: 3.0V ~ 3.6V For L Version.
SM8958AL25, 25MHz 32KB internal flash MCU
SM8958AL33, 33MHz 32KB internal flash MCU
SM8958AC25, 25MHz 32KB internal flash MCU
SM8958AC40, 40MHz 32KB internal flash MCU
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
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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.
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
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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
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Code protection function
Low EMI (inhibit ALE)
Ordering Information
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5 channel SPWM function with P1.3 ~ P1.7
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
Taiwan
{No text is Non-PB Free,”P”is PB Free}
6F, No.10-2 Li- Hsin 1st Road ,
Science-based Industrial Park,
Hsinchu, Taiwan 30078
Pin / Pad
Postfix
Package
Dimension
Configuration
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TEL: 886-3-567-1820
886-3-567-1880
P
J
40L PDIP
44L PLCC
44L QFP
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FAX: 886-3-567-1891
886-3-567-1894
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Specifications subject to change without notice contact your sales representatives for the most recent information.
Ver 2.1 SM8958A 08/2006
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