SM8954A 查看數據表（PDF） - SyncMOS Technologies,Inc
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SM8954A Datasheet PDF : 23 Pages
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SyncMOS Technologies International, Inc.
SM8954A
8-Bits Micro-controller
With 16KB flash & 1KB RAM embedded
Product List
Features
z
SM8954AL25, 25MHz 16KB internal flash MCU
SM8954AC25, 25MHz 16KB internal flash MCU
z
SM8954AC40, 40MHz 16KB internal flash MCU
z
z
Description
z
z
The SM8954A series product is an 8 - bit single chip z
micro controller with 16KB on-chip flash and 1K byte z
RAM embedded. It is a derivative of the 8052 micro z
controller family. It has 5-channel SPWM build-in.
With its hardware features and powerful instruction set, z
it’s straight forward to make it a versatile and cost
z
effective controller for those applications which
z
demand up to 16 I/O pins for PDIP package or up to 36 z
I/O pins for PLCC/QFP package, or applications which z
need up to 16K byte flash memory for program data. z
To program the on-chip flash memory, a commercial z
writer is available to do it in parallel programming z
method.
z
z
z
z
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
16K 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
Ordering Information
down mode
z Code protection function
z Low EMI (inhibit ALE)
yymmv
z 5 channel SPWM function with P1.3 ~ P1.7
SM8954AihhkL
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 SM8954A 08/2006
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