tm

May 2007

©1997 Fairchild Semiconductor Corporation

www.fairchildsemi.com

74VHCT245A Rev. 1.3

74VHCT245A

Octal Buffer/Line Driver with 3-STATE Outputs

Features

General Description

The VHCT245A is an advanced high speed CMOS octal

bus transceiver fabricated with silicon gate CMOS tech-

nology. It achieves high speed operation similar to equiv-

alent Bipolar Schottky TTL while maintaining the CMOS

low power dissipation. The VHCT245A is intended for

bidirectional asynchronous communication between

data busses. The direction of data transmission is deter-

mined by the level of the T/R input. The enable input can

be used to disable the device so that the busses are

effectively isolated.

Protection circuits ensure that 0V to 7V can be applied to

voltage. These circuits prevent device destruction due to

mismatched supply and input/output voltages. This

device can be used to interface 5V to 3V systems and

two supply systems such as battery back up.

Note:

1. Outputs in OFF-State

Ordering Information

Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the

ordering number. Pb-Free package per JEDED J-STD-020B.

Order Number

Package

Number

Package Description

74VHCT245AM

M20B

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

74VHCT245ASJ

M20D

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

74VHCT245AMTC

MTC20

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm

Wide