TECHNICAL DATA

IN74AC174

Hex D Flip-Flop with

Common Clock and Reset

High-Speed Silicon-Gate CMOS

ORDERING INFORMATION

IN74AC174N Plastic

IN74AC174D SOIC

The

IN74AC174

is

identical

in

pinout

to

the

LS/ALS174,

HC/HCT174. The device inputs are compatible with standard CMOS

outputs; with pullup resistors, they are compatible with LS/ALS outputs.

This device consists of six D flip-flops with common Clock and Reset

inputs. Each flip-flop is loaded with a low-to-high transition of the Clock

input. Reset is asynchronous and active-low.

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 μA; 0.1 μA @ 25°C

• High Noise Immunity Characteristic of CMOS Devices

• Outputs Source/Sink 24mA

Rev. 00

FUNCTION TABLE

Inputs

Output

Reset

Clock

D

Q

L

X

X

L

H

H

H

H

L

L

H

L

X

no change

H

X

no change

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 8 = GND

X = Don’t care