SM8958B Datasheet, PDF (3/49 Pages) SyncMOS Technologies,Inc – 256 bytes SRAM as standard 8052

SM8958B
8-Bit Micro-controller
32KB Flash
& 1KB RAM embedded
Product List
SM8958BW40PP,
SM8958BW44JP,
SM8958BW44QP,
Description
The SM8958B series product is an 8 - bit single chip
micro controller with 32KB flash & 1KB SRAM
embedded.
SM8958B is a versatile and cost effective controller for
those applications which demand up to 36 I/O pins, or
applications which need up to 32K byte flash memory
either for program or for data or mixed.
To program the on-chip flash memory, a commercial
writer is available to do it in parallel programming
method.
Ordering Information
SM8958BihhkL YWW
i: process identifier { W = 2.4V ~ 5.5V}
hh: pin count
k: package type postfix {as table below }
L:PB Free identifier
{No text is Non-PB free, ”P” is PB free}
Y: Year Code
WW: Week Code (01-52)
Postfix
P
J
Q
Package
PDIP
PLCC
PQFP
Features
 Main Flash ROM 32KB.
 Working voltage 2.4V~5.5V runs up to
40MHz
 General 8052 family compatible with 12
clocks in one machine cycle.
 256 bytes SRAM as standard 8052.
 On-chip 768 bytes expanded RAM.
 16-bit Data Pointers (DPTR).
 One serial peripheral interfaces in full duplex
mode (UART).
- Synchronous mode, fixed baud rate.
- 8-bit UART mode, variable baud rate.
- 9-bit UART mode, fixed baud rate.
- 9-bit UART mode, variable baud rate.
 Three 16-bit Timer/Counters (Timer 0, 1, 2).
 One watch dog timer (WDT).
 One IIC interface (Master / Slave mode).
 Two 8-bit/5-bit configurable PWM output
channels.
 Seven interrupt sources with two priority
levels.
 Four 8-bit I/O ports and additional one 4-bit
I/O ports.
 IO PAD ESD over 4KV.
 Enhance user code protection.
 Power management unit for IDLE and power
down modes.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M085
Ver D SM8958B 08/07/2015
-3-