SyncMOS Technologies Inc.
SM5964
8 - Bit Micro-controller
July 2002
64KB ISP flash & 1KB RAM embedded
Product List
Features
Working voltage: 4.5V through 5.5V
SM5964C25, 25 MHz 64KB internal flash MCU
SM5964C40, 40 MHz 64KB internal flash MCU
General 8052 family compatible
12 clocks per machine cycle
64K byte on chip flash memory with In-System
Programming (ISP) capability
1024 byte on chip data RAM
Three 16 bit Timers/Counters
One Watch Dog Timer
Description
The SM5964 series product is an 8 - bit single chip
microcontroller with 64KB flash & 1K byte RAM embed-
ded. It has In-System Programming (ISP) function and
is a derivative of the 8052 microcontroller 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
64K byte flash memory either for program or for data or
mixed.
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
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.
BCD arithmetic
Direct Addressing
Indirect Addressing
Nested Interrupt
Ordering Information
Two priority level interrupt
A serial I/O port
yywwv
SM5964ihhk
Power save modes:
Idle mode and Power down mode
Code protection function
yy: year, ww:week
v: version identifier { , A, B, ...}
i: process identifier
Low EMI (inhibit ALE)
Reset with address $0000 blank initiate ISP service program
ISP service program space configurable in N*512byte
(N=0 to 8) size
hh: working clock in MHz {25, 40}
k: package type postfix {as below table}
Bank mapping direct addressing mode for access on-chip
RAM
Pin/Pad
Postfix
P
J
Package
40L PDIP
44L PLCC
44L QFP
Configuration
Dimension
page 24
page 25
page 26
page 2
page 2
page 2
Five channel Specific PWM (SPWM) build-in with P1.3 ~ P1.7
Q
Taiwan
4F, No. 1 Creation Road 1,
Science-based Industrial Park,
Hsinchu, Taiwan 30077
TEL: 886-3-578-3344
886-3-579-2988
FAX: 886-3-579-2960
886-3-578-0493
Website: http://www.syncmos.com.tw
Specifications subject to change without notice,contact your sales representatives for the most recent information.
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PID 5964 07/02
Ver 1.0