PCB83C654 Datasheet - NXP

PCB83C654 CMOS Single-Chip 8-Bit Microcontroller

The P83C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 83C654 has the same instruction set as the 80C51. Two versions of the derivative exist: 83C654 * 16k bytes mask programmable ROM 87C654 <.

PCB83C654 Features

* 80C51 central processing unit

* 16k × 8 ROM expandable externally to 64k bytes

* 256 × 8 RAM, expandable externally to 64k bytes

* Two standard 16-bit timer/counters

* Four 8-bit I/O ports

* I2C-bus serial I/O port with byte oriented master and slave

PCB83C654_PhilipsSemiconductors.pdf