SM8958A Datasheet, PDF (1/25 Pages) SyncMOS Technologies,Inc – 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded

SyncMOS Technologies Inc.
September 2002
Product List
SM8958AL25, 25MHz 32KB internal flash MCU
SM8958AC25, 25MHz 32KB internal flash MCU
SM8958AC40, 40MHz 32KB internal flash MCU
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
Features
SM8958A
8 - Bit Micro-controller
with 32KB flash & 1KB RAM embedded
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
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
Web site: http://www.syncmos.com.tw
Specifications subject to change without notice,contact your sales representatives for the most recent information.
1/25
Taiwan
4F, No. 1 Creation Road 1,
Science-based Industrial Park,
Hsinchu, Taiwan 30077
TEL: [phone]
886-3-579-2988
FAX: [phone]
886-3-578-0493
Ver 1.0 PID 8958A 09/02