UNISONIC TECHNOLOGIES CO., LTD

U74HCT640

CMOS IC

www.unisonic.com.tw

1 of 6

Copyright © 2012 Unisonic Technologies Co., Ltd

QW-R502-684.B

OCTAL BUS TRANSCEIVERS WITH

3-STATE OUTPUTS

DESCRIPTION

The U74HCT640 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 B bus to the

A bus.

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

OE

is low, the buses are enable.

FEATURES

* Inputs are TTL-voltage compatible

* ±6mA output driver at 4.5V

SOP-20

SSOP-20

TSSOP-20

ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U74HCT640L-P20-R

U74HCT640G-P20-R

TSSOP-20

Tape Reel

U74HCT640L-P20-T

U74HCT640G-P20-T

TSSOP-20

Tube

U74HCT640L-R20-R

U74HCT640G-R20-R

SSOP-20

Tape Reel

U74HCT640L-R20-T

U74HCT640G-R20-T

SSOP-20

Tube

U74HCT640L-S20-R

U74HCT640G-S20-R

SOP-20

Tape Reel

U74HCT640L-S20-T

U74HCT640G-S20-T

SOP-20

Tube