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MC74VHC573MEL

Octal D−Type Latch with 3−State Output

ON Semiconductor 

MC74VHC573

Octal D−Type Latch with

3−State Output

The MC74VHC573 is an advanced high speed CMOS octal latch

with 3−state output fabricated with silicon gate CMOS technology. It

achieves high speed operation similar to equivalent Bipolar Schottky

TTL while maintaining CMOS low power dissipation.

This 8−bit D−type latch is controlled by a latch enable input and an

output enable input. When the output enable input is high, the eight

outputs are in a high impedance state.

The internal circuit is composed of three stages, including a buffer

output which provides high noise immunity and stable output. The

inputs tolerate voltages up to 7V, allowing the interface of 5V systems

to 3V systems.

• High Speed: tPD = 4.5ns (Typ) at VCC = 5V

• Low Power Dissipation: ICC = 4μA (Max) at TA = 25°C

• High Noise Immunity: VNIH = VNIL = 28% VCC

• Power Down Protection Provided on Inputs

• Balanced Propagation Delays

• Designed for 2V to 5.5V Operating Range

• Low Noise: VOLP = 1.2V (Max)

• Pin and Function Compatible with Other Standard Logic Families

• Latchup Performance Exceeds 300mA

• ESD Performance: HBM > 2000V; Machine Model > 200V

• Chip Complexity: 218 FETs or 54.5 Equivalent Gates

w These devices are available in Pb−free package(s). Specifications herein

apply to both standard and Pb−free devices. Please see our website at

www.onsemi.com for specific Pb−free orderable part numbers, or

contact your local ON Semiconductor sales office or representative.

http://onsemi.com

20

1

20

1

20

1

SOIC−20 WIDE

DW SUFFIX

CASE 751D

MARKING

DIAGRAMS

20

VHC573

AWLYYWW

1

20

TSSOP−20

DT SUFFIX

CASE 948E

VHC

573

ALYW

1

20

SOIC EIAJ

M SUFFIX

CASE 967

VHC573

AWLYYWW

1

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

PIN ASSIGNMENT

OE 1

D0 2

D1 3

D2 4

D3 5

D4 6

D5 7

D6 8

D7 9

GND 10

20 VCC

19 Q0

18 Q1

17 Q2

16 Q3

15 Q4

14 Q5

13 Q6

12 Q7

11 LE

© Semiconductor Components Industries, LLC, 2006

March, 2006 − Rev. 5

ORDERING INFORMATION

Device

MC74VHC573DW

Package Shipping

SOIC−WIDE 38 / Rail

MC74VHC573DWR2 SOIC−WIDE 1000 / Reel

MC74VHC573DT

TSSOP−20 75 / Rail

MC74VHC573DTR2 TSSOP−20 2500 / Reel

MC74VHC573M

MC74VHC573MEL

SOIC EIAJ 40 / Rail

SOIC EIAJ 2000 / Reel

1

Publication Order Number:

MC74VHC573/D

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