80C31 Datasheet - NXP

80C31 - 8-bit microcontroller

The Philips 80C31/32 is a high-performance static 80C51 design fabricated with Philips high-density CMOS technology with operation from 2.7 V to 5.5 V. The 80C31/32 ROMless devices contain a 128 × 8 RAM/256 × 8 RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested .

80C31 Features

* 8051 Central Processing Unit

* 128 × 8 RAM (80C31)

* 256 × 8 RAM (80C32)

* Three 16-bit counter/timers

* Boolean processor

* Full static operation

* Low voltage (2.7 V to 5.5 V@ 16 MHz) operation

* Memory addressing capability

80C31_PhilipsSemiconductors.pdf