IC80C31 Datasheet | Integrated Circuit Solution

IC80C31 IC80C51 IC80C31 IC80C51 CMOS SINGLE CHIP 8-BIT MICROCONTROLLER Features - - - - - - - - - 80C51 based architecture 4K x 8 ROM (IC80C51 only) 128 x 8 RAM Two 16-bit Timer/Counters Full duplex serial channel Boolean processor Four 8-bit I/O ports, 32 I/O lines Memory addressing capability - 64K ROM and 64K RAM Program memory lock - Encrypted verify (32 bytes) - Lock bits (2) Power save modes: - Idle and power-down Six interrupt sources Most instructions execute in 0.3 µs CMOS and TTL patible Maximum speed: 40 MHz @ Vcc = 5V Packages available: - 40-pin DIP - 44-pin PLCC - 44-pin PQFP GENERAL DESCRIPTION The ICSI IC80C51 and IC80C31 are high-performance microcontroller fabricated using high-density CMOS technology. The CMOS IC80C51/31 is functionally patible with the industry standard 80C51/31 microcontrollers. The IC80C51/31 is designed with 4K x 8 ROM (IC80C51 only); 128 x 8 RAM; 32 programmable I/O lines; a serial I/ O port for either multiprocessor munications, I/O expansion or full duplex UART; two 16-bit timer/counters; an six-source, two-priority-level, nested interrupt structure; and an on-chip oscillator and clock circuit. The IC80C51/31 can be expanded using standard TTL patible memory. - - - - - - P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST Rx D/P3.0 Tx D/P3.1 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 WR/P3.6 RD/P3.7 XTAL2 XTAL1 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 EA ALE PSEN P2.7/A15 P2.6/A14 P2.5/A13 P2.4/A12 P2.3/A11 P2.2/A10 P2.1/A9 P2.0/A8 Figure 1. IC80C51/31 Pin Configuration: 40-pin DIP ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2000, Integrated Circuit Solution Inc. Integrated...