© Semiconductor Components Industries, LLC, 2005

July, 2005 − Rev. 11

1

Publication Order Number:

MC74HC245A/D

MC74HC245A

Octal 3−State Noninverting

Bus Transceiver

High−Performance Silicon−Gate CMOS

The MC74HC245A is identical in pinout to the LS245. The device

inputs are compatible with standard CMOS outputs; with pull−up

resistors, they are compatible with LSTTL outputs.

The HC245A is a 3−state noninverting transceiver that is used for

2−way asynchronous communication between data buses. The device

has an active−low Output Enable pin, which is used to place the I/O

ports into high−impedance states. The Direction control determines

whether data flows from A to B or from B to A.

Features

No. 7A

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

http://onsemi.com

20

1

1

20

MARKING

DIAGRAMS

SOIC−20

DW SUFFIX

CASE 751D

74HC245A

AWLYYWWG

HC

245A

ALYW

G

G

TSSOP−20

DT SUFFIX

CASE 948E

SOEIAJ−20

F SUFFIX

CASE 967

74HC245A

AWLYWWG

1

1

1

20

1

20

20

20

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

PDIP−20

N SUFFIX

CASE 738

1

20

MC74HC245AN

AWLYYWWG

1

20

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W

= Work Week

G

= Pb−Free Package

G

= Pb−Free Package

(Note: Microdot may be in either location)