[Acer Laboratories Inc.]

General Description

The M6759 is an 8032/8052 instruction compatible 8-bit microcontroller with MTP Flash ROM for firmware updating. By combining a versatile 8-bit CPU with MTP-Flash, this device provides whole microcontroller system on one chip and still remains the feasibility for general control systems in a variety of applications. Furthermore, user-defined security registers can protect the firmware after the code is ready.

The M6759 contains the following: a) a non-volatile 64K bytes Multiple Times Programmable ROM program memory. b) a volatile 512 bytes read/write data memory c) four 8-bit I/O ports, two 16-bit timer/event counters (identical to the timers of the 80C51). d) a 16-bit timer (identical to the Timer 2 of the 8052). e) a multi-source two-priority-level nested interrupt structure. f) one serial interface (UART) and g) an on-chip oscillator.

Features

■ 8051 instruction set compatible 8-bit micro

controller

■ 8051/8052 compatible pinout

■ Complete static design, wide range of

operation frequency from 1 ~ 40 MHz

■ Large on-chip memory

• 64K bytes built-in Multiple Times

Programmable ROM (MTP-ROM) program

memory

• 512 bytes on-chip SRAM, expandable

external 64K bytes address space

■ Dual Data Pointer

■ Four 8-bit bi-directional I/O ports

■ 6 interrupts including 2 external sources

■ One full-duplex serial UART ports compatible

with standard 8052

■ Three 16 bit timer/counters

■ On chip oscillator for crystal

■ Software Power-Down mode, supports Idle

mode and Power Down mode for less power

consumption

■ ROM Code Protection

■ 4.5V~5.5V operation voltage, 12V

programming voltage

■ 44-pin PLCC or QFP package