82C55 Datasheet | Wing Shing Computer Components

CMOS Programmable peripheral Interface Features - Pin patible with NMOS 8255A - 24 Programmable I/O Pins - Fully TTL patible - High Speed, No “Wait State” Operation with 5MHz 80C86 and 8MHz 80C88 - Direct Bit Set/Reset Capability - Enhanced Control Word Read Capability - L7 Process - 2.5mA Drive Capability on All I/O Ports - Low Standby Power (ICCSB) - - - . .10µA WS82C55A Description The WS82C55A is a high performance CMOS version of the industry standard 8255A and is manufactured using a self-aligned silicon gate CMOS process (Scaled SAJI IV). It is a general purpose programmable I/O device which may be used with many different microprocessors. There are...