SM5953 Datasheet, PDF (3/43 Pages) SyncMOS Technologies,Inc – Six interrupt sources with two priority levels

SM5953
8-Bit Micro-controller
15KB with ISP Flash
& 256B RAM embedded
Product List
SM5953W40PP,
SM5953W44JP,
SM5953W44QP,
Description
The SM5953 series product is an 8 - bit single chip
micro controller with 15KB flash & 256 bytes SRAM
embedded. It has In-System Programming (ISP)
function and is a derivative of the 8052 micro controller
family.
SM5953 is a versatile and cost effective controller for
those applications which demand up to 32 I/O pins, or
applications which need up to 15K 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. The on-chip flash memory can be
programmed in either parallel or serial interface with its
ISP feature.
Ordering Information
SM5953ihhkL 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
WW: week
Postfix
P
J
Q
Package
PDIP
PLCC
PQFP
Features
 Main Flash ROM 15KB
 Working voltage 2.4V~5.5V runs up to
40MHz
 General 8052 family compatible with 12
clocks in one machine cycle
 6 clocks in one machine cycle is also
supported
 256 bytes SRAM as standard 8052.
 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).
 ISP/IAP functions.
 ISP service program space configurable in N
(N=0 to 8).
 EEPROM function.
 Six interrupt sources with two priority levels.
 Four 8-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-M074
Ver D SM5953 04/16/2015
-3-