[MACRONIX INTERNATIONAL CO., LTD.]

GENERAL DESCRIPTION

The single-chip 8-bit microcontroller is manufactured in MXICs advanced CMOS process. This device uses the same powerful instruction set, has the same architecture, and is pin-to-pin compatible with the existing 80C51. The added features make it an even more powerful microcontroller for applications that require clock output, and up/down counting capabilities such as motor control. It also has a more versatile serial channel that facilitates multi-processor communications.

FEATURE

? High performance CMOS ROM CPU

? Operation Voltage 5V

? Up to 40MHz operation (3.5MHz to 40MHz)

? Three 16-bit timer/counters

? 256 Bytes of on-chip data RAM

? 4/8/16/32/64 Kbytes on-chip Program memory

? 32 Programmable I/O lines

? On-chip Watch-Dog-Timer (WDT)

? 6 interrupt Sources

? ROM Code protection

? Two priority levels

? Power saving Idle and power down modes

? 64 K external program memory space

? 64 K external data memory space

? Available in PLCC, PQFP, and PDIP package

? Four 8-bit I/O ports

? Full-duplex enhanced UART compatible with the standard 80C51 and the 80C52

? Extended Temperature Range (-40°C to +85°C)