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MC74HC573AFR1

Octal 3-State Noninverting Transparent Latch

ON Semiconductor 

MC74HC573A

Octal 3-State Noninverting

Transparent Latch

High–Performance Silicon–Gate CMOS

The MC74HC573A is identical in pinout to the LS573. The devices

are compatible with standard CMOS outputs; with pullup resistors,

they are compatible with LSTTL outputs.

These latches appear transparent to data (i.e., the outputs change

asynchronously) when Latch Enable is high. When Latch Enable goes

low, data meeting the setup and hold time becomes latched.

The HC573A is identical in function to the HC373A but has the data

inputs on the opposite side of the package from the outputs to facilitate

PC board layout.

• Output Drive Capability: 15 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 µA

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

• Chip Complexity: 218 FETs or 54.5 Equivalent Gates

http://onsemi.com

20

1

20

1

PDIP–20

N SUFFIX

CASE 738

SOIC WIDE–20

DW SUFFIX

CASE 751D

MARKING

DIAGRAMS

20

MC74HC573AN

AWLYYWW

1

20

HC573A

AWLYYWW

1 20

20

1

TSSOP–20

DT SUFFIX

CASE 948E

HC

573A

ALYW

1

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

ORDERING INFORMATION

Device

Package Shipping

MC74HC573AN

PDIP–20 1440 / Box

MC74HC573ADW

SOIC–WIDE 38 / Rail

MC74HC573ADWR2 SOIC–WIDE 1000 / Reel

MC74HC573ADT

TSSOP–20 75 / Rail

MC74HC573ADTR2 TSSOP–20 2500 / Reel

© Semiconductor Components Industries, LLC, 2000

1

May, 2000 – Rev. 9

Publication Order Number:

MC74HC573A/D

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