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DESCRIPTION

The 80C562/83C562 (hereafter generically referred to as 8XC562) Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 83C562/83C562 has the same instruction set as the 80C51.

The 8XC562 contains a non-volatile 256 × 8 read-only program memory, a volatile 256 × 8 read/write data memory (83C562) (the 80C562 is ROMless), a volatile 256 × 8 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 15-source, two-priority-level, nested interrupt structure, an 8-input ADC, two pulse width modulated outputs, standard 80C51 UART, a “watchdog” timer and on-chip oscillator and timing circuits. For systems that require extra capability, the 83C562 can be expanded using standard TTL compatible memories and logic.

FEATURES

? 80C51 instruction set

? 8k × 8 ROM expandable externally to 64k bytes

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

? Two standard 16-bit timer/counters

? An additional 16-bit timer/counter coupled to four capture registers and three compare registers

? Capable of producing eight synchronized, timed outputs

? An 8-bit ADC with eight 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

? Three temperature ranges

– 0 to +70°C

– –40 to +85°C

– –40 to +125°C