7.4

1

IDT54/74FCT139/A/C

FAST CMOS DUAL 1-0F-4 DECODER WITH ENABLE

MILITARY AND COMMERCIAL TEMPERATURE RANGES

Integrated Device Technology, Inc.

®

FEATURES:

• IDT54/74FCT139 equivalent to FAST

™ speed

• IDT54/74FCT139A 35% faster than FAST

• IDT54/74FCT139C 45% faster than FAST

• Equivalent to FAST output drive over full temperature

and voltage supply extremes

• CMOS power levels (1mW typ. static)

• TTL input and output level compatible

• CMOS output level compatible

• Substantially lower input current levels than FAST

(5

µA max.)

• JEDEC standard pinout for DIP and LCC

• Product available in Radiation Tolerant and Radiation

Enhanced versions

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

DESCRIPTION:

The IDT54/74FCT139/A/C 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.

IDT54/74FCT139

IDT54/74FCT139A

IDT54/74FCT139C

FAST CMOS DUAL

1-OF-4 DECODER

WITH ENABLE

FUNCTIONAL BLOCK DIAGRAM

2605 cnv* 01

2605 cnv* 02

2605 cnv* 03

PIN CONFIGURATIONS

GND

1

2

3

4

5

6

7

89

10

11

12

13

14

15

16

P16-1

D16-1

SO16-1

&

E16-1

INDEX

3

2

20 19

1

4

5

6

7

8

18

17

16

15

14

9 1011 1213

L20-2

NC

NC

DIP/SOIC/CERPACK

TOP VIEW

LCC

TOP VIEW

MILITARY AND COMMERCIAL TEMPERATURE RANGES

MAY 1992

©1992 Integrated Device Technology, Inc.

7.4

DSC 4613/3

1

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

FAST is a trademark of National Semiconductor Co.