描述 Description

The SM89516 series product is an 8 - bit single chip micro controller with 64KB flash & 1KB RAM embedded. It is a derivative of the 8052 micro controller family. 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 64KB 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.

特性 Features

Working voltage: 3.0V ~ 3.6V For L Version

4.5V ~ 5.5V For C Version

General 8052 family compatible

12 clocks per machine cycle

64 KB internal flash memory

1024 bytes data RAM

Three 16 bit timers/counters

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

BCD arithmetic operations

Direct addressing

Indirect addressing

Nested interrupts

Two priority level interrupts

A serial I/O port

Power save modes:

Idle mode and power down mode

Code protection function

One watch dog timer (WDT)

Low EMI (inhibit ALE)