[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