UNISONIC TECHNOLOGIES CO., LTD

U74HC640

CMOS IC

www.unisonic.com.tw

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Copyright © 2011 Unisonic Technologies Co., Ltd

QW-R126-008.A

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

DESCRIPTION

The U74AHC640 is a octal bus transceivers with 3-state

outputs. It is designed for asynchronous two-way communication

between data buses. Depending on the direction-control (DIR) input,

data are transmitted from the A bus to the B bus or from the B bus to

the A bus.

When OE is high, the buses are effectively isolated. When

OE

is low, the buses are enable.

FEATURES

* Wide Supply Voltage Range from 2V to 6V

* ±7.8mA Output Driver at 6V

ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U74AHC640L-R20-R

U74AHC640G-R20-R

SSOP-20

Tape Reel

U74AHC640L-R20-T

U74AHC640G-R20-T

SSOP-20

Tube