P80C31, P80 Datasheet - NXP

P80C31, P80, 80C51 8-bit microcontroller

INTEGRATED CIRCUITS 80C51/87C51/80C31 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage (2.7V *5.5V), low power, high spee.
The Philips 8XC51/31 is a high-performance static 80C51 design fabricated with Philips high-density CMOS technology with operation from 2.

Features

* 8051 Central Processing Unit
* 4k × 8 ROM (80C51)
* 128 × 8 RAM
* Three 16-bit counter/timers
* Boolean processor
* Full static operation
* Low voltage (2.7V to 5.5V@ 16MHz) operation
* Memory addressing capability
* 64k ROM

Applications

* requiring more ROM and RAM, see the 8XC52/54/58/80C32, 8XC51FA/FB/FC/80C51FA, and 8XC51RA+/RB+/RC+/80C51RA+ data sheet. ROM/EPROM Memory Size (X by 8) 80C31/8XC51 0K/4K 80C32/8XC52/54/58 0K/8K/16K/32K 256 No No 128 No No RAM Size (X by 8) Programmable Timer Counter (PCA) Hardware Watch Dog Timer

P80-C31.pdf