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SL74HCT374D

Octal 3-State Noninverting D Flip-Flop

System Logic Semiconductor 

SL74HCT374

Octal 3-State Noninverting D Flip-Flop

High-Performance Silicon-Gate CMOS

The SL74HCT374 is identical in pinout to the LS/ALS374.

The SL74HCT374 may be used as a level converter for interfacing

TTL or NMOS outputs to High-Speed CMOS inputs.

Data meeting the setup and hold time is clocked to the outputs with

the rising edge of the Clock. The Output Enable input does not affect

the states of the flip-flops, but when Output Enable is high, the

outputs are forced to the high-impedance state; thus, data may be

stored even when the outputs are not enabled.

• 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 µA

ORDERING INFORMATION

SL74HCT374N Plastic

SL74HCT374D SOIC

TA = -55° to 125° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

SLS

System Logic

Semiconductor

FUNCTION TABLE

Output

Enable

L

L

L

Inputs

Clock

L,H,

H

X

X = don’t care

Z = high impedance

Output

D

Q

H

H

L

L

X

no

change

X

Z

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