IN74ACT574

1

High-Performance Silicon-Gate CMOS

The IN74ACT574 is identical in pinout to the LS/ALS574,

HC/HCT574. The IN74ACT574 may be used as a level converter

for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

Data meeting the setup 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, all

device 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; 0.1 µA @ 25°C

• Outputs Source/Sink 24 mA

ORDERING INFORMATION

IN74ACT574N Plastic

IN74ACT574DW SOIC

packages

FUNCTION TABLE

Inputs

Output

Output

Enable

Clock

D

Q

L

H

H

L

L

L

L

L,H,

X

no

change

H

X

X

Z

X

=

don’t

care

Z = high impedance

LOGIC DIAGRAM

PIN 10 = GND

PIN ASSIGNMENT