Product Summary

The 8406602QA 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 24 I/O pins which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation. The high performance and industry standard configuration of the 8406602QA make it compatible with the 80C86, 80C88 and other microprocessors.

Parametrics

8406602QA absolute maximum ratings: (1)Supply Voltage: +8.0V; (2)Input, Output or I/O Voltage: GND-0.5V to VCC+0.5V; (3)Voltage Range: +4.5V to 5.5V.

Features

8406602QA features: (1)Pin Compatible with NMOS 8255A; (2)24 Programmable I/O Pins; (3)Fully TTL Compatible; (4)High Speed, No Wait State Operation; (5)Direct Bit Set/Reset Capability; (6)Enhanced Control Word Read Capability; (7)L7 Process; (8)2.5mA Drive Capability on All I/O Ports; (9) Low Standby Power (ICCSB): 10μA.

Diagrams

8406602QA functional diagram

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