SyncMOS Technologies International, Inc.

SM89S16R1

8-Bits Micro-controller

With 64KB Flash ROM & 1KB RAM & RTC & ADC & PWM & PDWU embedded

Specifications subject to change without notice contact your sales representatives for the most recent information.

Ver 2.1 SM89S16R1 08/2006

1

Product List

SM89S16R1L25, 25MHz 64KB internal flash MCU

SM89S16R1C25, 25MHz 64KB internal flash MCU

SM89S16R1C40, 40MHz 64KB internal flash MCU

General Description

The SM89S16R1 is a single-chip 8-bits micro-

controller manufactured in an advanced CMOS

process with on chip flash memory. It supports a

derivative of the 80C51 microcontroller family.

The SM89S16R1 has the same instructions set as

the 80C51.

The SM89S16R1 contains a 64K x 8 bits on chip

program flash, a volatile 1024 x 8 bits data RAM,

four 8-bits I/O ports, one 4-bits I/O port, two

16-bits timer/event counters, and an additional

16-bits timer coupled to capture and compare

latches, a two-priority-level, nested interrupt

structure, two PWM clock outputs, one serial

interfaces (UART bus). For system that requires

extra capability the SM89S16R1 can be expanded

using standard TTL and LVTTL compatible

memory and logic.

In addition, The SM89S16R1 has two software

selectable modes of power saving – IDLE mode

and POWER-DOWN mode. The IDLE mode

freezes the CPU while allowing the RAM, timer,

serial ports, and interrupt system to continue

functioning. The POWER-DOWN mode saves the

RAM contents but freezes the oscillator, causing all

other chip functions to be inoperative.

Ordering Information

SM89S16R1ihhkL

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}

Feature

Working Voltage: 3.3V or 5.0V.

80C51 Central Processor Unit (CPU).

64K x 8 bits on chip flash memory.

1024 x 8 bits RAM, expandable externally to

64KB.

Two standard 16-bits timers/counters

An additional 16-bits timer/counter coupled to

a capture and compare register.

Two 8-bits / 5-bits resolution

Pulse-Width-Modulation (PWM) outputs

Four 8-bits I/O ports.(For PDIP package)

Four 8-bits I/O ports plus one 4-bits I/O port.

(For PLCC or QFP package)

Full-duplex UART

8 interrupt sources with 2 priority levels

Extended temperature range (-40℃ to +85℃)

Software enable/disable ALE output pulse

Wake-up from POWER-DOWN mode by

INT0/INT1, RTCI or H/W RESET.

RTC (Real Time Clock) function.

Four channels 6-bits Analog to Digital

Converter (ADC).

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