SyncMOS Technologies Inc.

SM89T16R1

8-Bits Micro-controller

With 64KB Flash ROM & IKB RAM & Two UART & RTC & ADC & PWM embedded

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

SM89T16R1 V1.0 JANUARY 2005

1

Product List

SM89T16R1L16, 16MHz 64KB internal flash MCU

SM89T16R1C25, 25MHz 64KB internal flash MCU

General Description

The SM89T16R1 is a high speed (4 clocks /

machine cycle) single-chip 8-bits microcontroller

manufactured in an advanced CMOS process with

on chip flash memory. It supports a derivative of

the 80C51 microcontroller family. The

SM89T16R1 has the same instructions set as the

80C51.

The SM89T16R1 contains a 64KB on chip program

flash, a volatile 1280 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

pulse-width- modulation outputs, two UART and

two DPTR, an on-chip oscillator and timing circuit.

For system that requires extra capability the

SM89T16R1 can be expanded using standard TTL

compatible memory and logic.

In addition, The SM89T16R1 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.

The Power Management Mode (PMM) is useful for

portable or battery-powered applications. This

feature allows software to select a lower speed

clock as the main time base.

Ordering Information

SM89T16R1ihhk

yymmv

i: process identifier {L=3.0V~3.6V,C=4.5V~ 5.5V}

hh: working clock in MHz {16,25}

k: package type postfix {as below table}

yy: year mm: month

v: version identifier { , A, B, ...}

Feature

Working Voltage: 3.3V or 5.0V.

80C51 Central Processor Unit (CPU),

High-Speed Architecture (4 clocks / machine

cycle), the maximum clock rate is 25 MHz.

64K x 8 on chip flash memory can be

1280 x 8 RAM (On-Chip 256 bytes and

Expand 1024 bytes), 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 channels 6 bits Analog to Digital

Converter (ADC).

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 PQFP package)

Two Full-duplex Enhance UART

Two DPTR (either data pointer can be

incremented and decrement).

13 interrupt sources (default 6 + int2, int3, int4,

int5, UART1, ADC, RTC) with 2 priority

levels.

RTC (Real Time Clock) function.

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

Software enable/disable ALE output pulse

Wake-up from POWER-DOWN mode by

external interrupt, RTCI or H/W Reset.

Taiwan

4F, No. 1 Creation Road 1,

Science-based Industrial Park,

Hsinchu, Taiwan 30077

TEL: 886-3-578-3344 #2667

886-3-579-2987

FAX: 886-3-5792960

886-3-5780493