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SM8958A

Description
8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded
File Size317KB,25 Pages
ManufacturerETC
Download Datasheet Compare View All

SM8958A Overview

8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded

SyncMOS Technologies Inc.
September 2002
SM8958A
8 - Bit Micro-controller
with 32KB flash & 1KB RAM embedded
Product List
SM8958AL25, 25MHz 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
Page free jumps
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)
Bank mapping direct addressing mode for access on-chip RAM
5 channel SPWM function with P1.3 ~ P1.7
Description
The SM8958A series product 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. User can access
on-chip expanded RAM with easier and faster way by its
‘bank mapping direct addressing mode’ scheme. 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
yywwv
SM8958Aihhk
yy: year, ww:week
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}
v: version identifier
Postfix
P
J
Q
Package
40L PDIP
44L PLCC
44L QFP
Pin/Pad
Configuration
page 2
page 2
page 2
Dimension
page 21
page 22
page 23
Taiwan
4F, No. 1 Creation Road 1,
Science-based Industrial Park,
Hsinchu, Taiwan 30077
TEL: 886-3-578-3344
886-3-579-2988
FAX: 886-3-579-2960
886-3-578-0493
Web site: http://www.syncmos.com.tw
Specifications subject to change without notice,contact your sales representatives for the most recent information.
1/25
Ver 1.0
PID 8958A 09/02

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SM8958A SM8958AC40 SM8958AL25 SM8958AC25
Description 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded
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