89C538 Datasheet - NXP

89C538 CMOS single-chip 8-bit microcontrollers with FLASH program memory

The 89C535/89C536/89C538 are Single-Chip 8-Bit Microcontrollers manufactured in advanced CMOS process and are derivatives of the 80C51 microcontroller family. All the devices have the same instruction set as the 80C51. The devices also have four 8-bit I/O ports, three 16-bit timer/event counters, a .

89C538 Features

* ADDRESS BUS

* 80C51 Central Processing Unit

* 8k x 8 (89C535) 16k × 8 (89C536) or 64k × 8 (89C538), FLASH EPROM Program Memory SU00830

* 512 × 8 RAM, externally expandable to 64k × 8 Data Memory

* Three 16-bit counter/timers

* Up to 3 external interrupt re

89C538_PhilipsSemiconductors.pdf