74AC374SCX View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

74AC374SCX

Octal D-Type Flip-Flop with 3-STATE Outputs

Fairchild Semiconductor 

Connection Diagram

Logic Symbols

IEEE/IEC

Pin Description

Pin

Names

D0–D7

CP

OE

O0–O7

Description

Data Inputs

Clock Pulse Input

3-STATE Output Enable Input

3-STATE Outputs

Functional Description

The AC/ACT374 consists of eight edge-triggered flip-

flops with individual D-type inputs and 3-STATE true out-

puts. The buffered clock and buffered Output Enable are

common to all flip-flops. The eight flip-flops will store the

state of their individual D inputs that meet the setup and

hold time requirements on the LOW-to-HIGH Clock (CP)

transition. With the Output Enable (OE) LOW, the con-

tents of the eight flip-flops are available at the outputs.

When the OE is HIGH, the outputs go to the high imped-

ance state. Operation of the OE input does not affect the

state of the flip-flops.

Truth Table

Inputs

Dn

CP

OE

H

L

L

L

X

X

H

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Z = High Impedance

= LOW-to-HIGH Transition

Outputs

On

H

L

Z

©1988 Fairchild Semiconductor Corporation

74AC374, 74ACT374 Rev. 1.5.0

2

www.fairchildsemi.com

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