SL74HC374 データシートの表示（PDF） - System Logic Semiconductor

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SL74HC374

Octal 3-State Noninverting D Flip-Flop High-Performance Silicon-Gate CMOS

System Logic Semiconductor 

SL74HC374

Octal 3-State Noninverting D Flip-Flop

High-Performance Silicon-Gate CMOS

The SL74HC374 is identical in pinout to the LS/ALS374. The device

inputs are compatible with standard CMOS outputs; with pullup

resistors, they are compatible with LS/ALSTTL outputs.

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.

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 µA

• High Noise Immunity Characteristic of CMOS Devices

ORDERING INFORMATION

SL74HC374N Plastic

SL74HC374D SOIC

TA = -55° to 125° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

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

SLS

System Logic

Semiconductor

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