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MC74HCT373A

Octal 3-State Noninverting Transparent Latch with LSTTL-Compatible Inputs

ON Semiconductor 

MC74HCT373A

Octal 3-State Noninverting

Transparent Latch with

LSTTL-Compatible Inputs

High−Performance Silicon−Gate CMOS

The MC74HCT373A may be used as a level converter for

interfacing TTL or NMOS outputs to High−Speed CMOS inputs.

The HCT373A is identical in pinout to the LS373.

The eight latches of the HCT373A are transparent D−type latches.

While the Latch Enable is high the Q outputs follow the Data Inputs.

When Latch Enable is taken low, data meeting the setup and hold

times becomes latched.

The Output Enable does not affect the state of the latch, but when

Output Enable is high, all outputs are forced to the high−impedance

state. Thus, data may be latched even when the outputs are not

enabled.

The HCT373A is identical in function to the HCT573A, which has

the input pins on the opposite side of the package from the output pins.

This device is similar in function to the HCT533A, which has

inverting outputs.

• Output Drive Capability: 15 LSTTL Loads

• TTL/NMOS−Compatible Input Levels

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 4.5 to 5.5 V

• Low Input Current: 1.0 mA

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7 A

• Chip Complexity: 196 FETs or 49 Equivalent Gates

• These Devices are Pb−Free and are RoHS Compliant

http://onsemi.com

MARKING

DIAGRAMS

20

1

20

1

20

1

20

PDIP−20

N SUFFIX

CASE 738

MC74HCT373AN

AWLYYWWG

1

20

SOIC−20

DW SUFFIX

CASE 751D

HCT373A

AWLYYWWG

1

20

TSSOP−20

DT SUFFIX

CASE 948E

1

HCT

373A

ALYWG

G

20

1

20

SOEIAJ−20

F SUFFIX

CASE 967

1

74HCT373A

AWLYWWG

A

WL, L

YY, Y

WW, W

G or G

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

Device

Package Shipping†

MC74HCT373ANG

PDIP−20 18 / Box

MC74HCT373ADWG

SOIC−20 38 / Rail

MC74HCT373ADWR2G SOIC−20 1000 / Reel

MC74HCT373AFELG SOEIAJ−20 2000 / Reel

MC74HCT373ADTR2G TSSOP−20 2500 / Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

© Semiconductor Components Industries, LLC, 2011

1

June, 2011 − Rev. 12

Publication Order Number:

MC74HCT373A/D

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