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PCB83C654 - CMOS Single-Chip 8-Bit Microcontroller

PCB83C654 Description

INTEGRATED CIRCUITS 83C654 CMOS single-chip 8-bit microcontroller Product specification Supersedes data of 1996 Aug 15 IC20 Data Handbook 1998 Jan .
The P83C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family.

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 Applications

* for general control systems. The 83C654 contains a non-volatile 16k × 8 read-only program memory, a volatile 256 × 8 read/write data memory, four 8-bit I/O ports, two 16-bit timer/event counters (identical to the timers of the 80C51), a multi-source, two-priority-level, nested interrupt structure, a

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