SyncMOS Technologies International, Inc.
SM8951B
8-Bits Micro-controller
With4KBFlashROM&128bytesRAM embedded
Product List
SM8951BL25, 25 MHz 4KB internal memory MCU
SM8951BC25, 25 MHz 4KB internal memory MCU
SM8951BC40, 40 MHz 4KB internal memory MCU
Feature
Working voltage:
3.0V ~ 3.6V For L Version
4.5V ~ 5.5V For C Version
General Description
The SM8951B series product is an 8-bits single
chip micro controller with 4KB flash embedded. It
provides hardware features and a powerful
instruction set, necessary to make it a versatile
and cost effective controller for those applications
demand up to 32 I/O pins or need up to 4KB flash
memory either for program or for data or mixed.
To program the flash block, a commercial
programmer is cap-able to do it.
Ordering Information
SM8951BihhkL
yymmv
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}
yy: year,
mm: month
v: version identifier {, A, B,...}
L:PB Free identifier
{No text is Non-PB Free，”P” is PB Free}
General 8051 family compatible
12 clocks per machine cycle
4KB internal flash memory
128 bytes data RAM
Two 16 bit timers/counters
Four 8-bit I/O ports
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
Strong Noise immunity
One watch dog timer (WDT)
Reduce EMI (inhibit ALE)
Postfix
P
J
Q
Package
40L PDIP
44L PLCC
44L QFP
Pin / Pad Configuration
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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.
ISSFD-M022Ver:BSM8951B
1
06/2009
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
