Integrated Device Technology, Inc.

DESCRIPTION:

The IDT54/74FCT139T/AT/CT are dual 1-of-4 decoders

built using an advanced dual metal CMOS technology. These

devices have two independent decoders, each of which

mutually exclusive active LOW outputs (

coder has an active LOW enable (

E). When E is HIGH, all

outputs are forced HIGH.

IDT54/74FCT139T/AT/CT

FAST CMOS DUAL

1-OF-4 DECODER

WITH ENABLE

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATIONS

MILITARY AND COMMERCIAL TEMPERATURE RANGES

APRIL 1995

©1995 Integrated Device Technology, Inc.

6.4

DSC-4218/3

2566 drw 01

2566 drw 02

2566 drw 03

INDEX

LCC

TOP VIEW

3

2

20 19

1

4

5

6

7

8

18

17

16

15

14

9 101112 13

L20-2

NC

NC

1

FEATURES:

• Std., A and C speed grades

• Low input and output leakage

≤1µA (max.)

• CMOS power levels

• True TTL input and output compatibility

• Meets or exceeds JEDEC standard 18 specifications

• Product available in Radiation Tolerant and Radiation

Enhanced versions

• Military product compliant to MIL-STD-883, Class B

and DESC listed (dual marked)

• Available in DIP, SOIC, QSOP, CERPACK and

LCC packages

GND

1

2

3

4

5

6

7

89

10

11

12

13

14

15

16

DIP/SOIC/QSOP/CERPACK

TOP VIEW

P16-1

D16-1

SO16-1

SO16-7

&

E16-1

The IDT logo is a registered trademark of Integrated Device Technology, Inc.