HD74AC374/HD74ACT374

Rev.2.00, Jul.16.2004, page 3 of 9

Truth Table

Inputs

Outputs

D

n

CP

OE

OE

OE

OE

O

n

H

LH

L

LL

XXH

Z

H :

High Voltage Level

L

:

Low Voltage Level

X :

Immaterial

Z

:

High Impedance

:

Low-to-High Transition

Logic Diagram

CP

QQ

D

CP

QQ

D

CP

QQ

D

CP

QQ

D

CP

QQ

D

CP

QQ

D

CP

QQ

D

CP

OE

CP

QQ

D

Please note that this diagram is provided only for the understanding of logic operations and should not be

used to estimate propagation delays.

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Condition

Supply voltage

V

CC

–0.5 to 7

V

–20

mA

V

DC input diode current

I

IK

20

mA

V

DC input voltage

V

I

–0.5 to Vcc+0.5

V

–50

mA

V

DC output diode current

I

OK

50

mA

V

DC output voltage

V

O

–0.5 to Vcc+0.5

V

DC output source or sink current

I

O

±50

mA

DC V

I

±50

mA

Storage temperature

Tstg

–65 to +150

°C

Recommended Operating Conditions: HD74AC374

Item

Symbol

Ratings

Unit

Condition

Supply voltage

V

CC

2 to 6

V

Input and Output voltage

V

0 to V

CC

V

Operating temperature

Ta

–40 to +85

°C

V

V

Input rise and fall time

(except Schmitt inputs)

V

tr, tf

8

ns/V

V