IS80C32

IS80C52 IS80C52 IS80C32 IS80C32 ISSI NOVEMBER 1998 GENERAL DESCRIPTION ISSI® ® CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER FEATURES 80C51 based architecture 8K x 8 ROM (IS80C52 only) 256 x 8 RAM www.DataSheet4U.com Three 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 Eight interrupt sources Most instructions execute in 0.3 µs CMOS and TTL compatible Maximum speed: 40 MHz @ Vcc = 5V Industrial temperature available Packages available: – 40-pin DIP – 44-pin PLCC – 44-pin PQFP The ISSI IS80C52 and IS80C32 are high-performance microcontrollers fabricated using high-density CMOS technology. The CMOS IS80C52/32 is functionally compatible with the industry standard 8052/32 microcontrollers. The IS80C52/32 is designed with 8K x 8 ROM (IS80C52 only); 256 x 8 RAM; 32 programmable I/O lines; a serial I/O port for either multiprocessor communications, I/O expansion or full duplex UART; three 16-bit timer/counters; an eight-source, two-priority-level, nested interrupt structure; and an on-chip oscillator and clock circuit. The IS80C52/32 can be expanded using standard TTL compatible memory. T2/P1.0 T2EX/P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST RxD/P3.0 TxD/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...