P80C562

Features:

* 80C51 Central Processing Unit
* 8 kbytes ROM, expandable externally to 64 kbytes
* 256 bytes RAM, expandable externally to 64 kbytes
* Two standard 16-bit timer/counters
* An additional 16-bit timer/counter coupled to four capture registers and three compare registers
* An 8-bit ADC with 8 multiplexed analog inputs
* Two 8-bit resolution, Pulse Width Modulated outputs
* Five 8-bit I/O ports plus one 8-bit input port shared with analog inputs
* Full-duplex UART compatible with the standard 80C51
* On-chip Watchdog Timer
* Oscillator frequency: 3.5 to 16 MHz.


Pinout




Description

The P80C562/P83C562 (hereafter generally referred to as P8xC562) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family.

The P8xC562 has the same instruction set as the 80C51.

Two versions of the derivative exist: * With 8 kbytes mask-programmable ROM * ROMless version of the P8xC562.

This I/O intensive device provides architectural enhancements to function as a controller in the field of automotive electronics, specifically engine management and gear box control.

The P8xC562 contains a non-volatile 8 kbyte read only program memory, a volatile 256 byte read/write data memory, six 8-bit I/O ports, two 16-bit timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and compare latches, a fourteen-source, two-priority-level, nested interrupt structure, an 8-input ADC, a dual DAC with pulse width modulated outputs, a serial interface (UART), a Watchdog Timer and on-chip oscillator and timing circuits.

For systems that require extra capability, the P8xC562 can be expanded using standard TTL compatible memories and logic.

The P80C562/P83C562 also functions as an arithmetic processor having facilities for both binary and BCD arithmetic plus bit-handling capabilities. The instruction set consists of over 100 instructions: 49 one-byte, 45 two-byte and 17 three-byte. With a 16 MHz crystal, 58% of the instructions are executed in 0.75 s and 40% in 1.5 s. Multiply and divide instructions require 3 s.