HD74HC643 Datasheet - Renesas

Octal Bus Transceivers

HD74HC643 Features

* High Speed Operation: tpd = 12 ns typ (CL = 50 pF)

* High Output Current: Fanout of 15 LSTTL Loads

* Wide Operating Voltage: VCC = 2 to 6 V

* Low Input Current: 1 µA max

* Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

* Orderin

HD74HC643 General Description

Each device has an active enable G and a direction control input, DIR. When DIR is high, data flows from the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The HD74HC640 transfers inverted data from one bus to other and the HD74HC643 transfers inverted dat.

HD74HC643 Datasheet (131.68 KB)