7.4

2

IDT54/74FCT139/A/C

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION

TRUTH TABLE

(1)

NOTE:

2605 tbl 05

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol

Rating

Commercial

Military

Unit

with Respect to

GND

–0.5 to +7.0

–0.5 to +7.0

V

with Respect to

GND

V

Operating

Temperature

0 to +70

–55 to +125

°C

Temperature

Under Bias

–55 to +125

–65 to +135

°C

Storage

Temperature

–55 to +125

–65 to +150

°C

Power

Dissipation

0.5

0.5

W

DC Output

Current

120

120

mA

NOTES:

2605 tbl 01

1. Stresses greater than those listed under ABSOLUTE MAXIMUM

RATINGS may cause permanent damage to the device. This is a stress

rating only and functional operation of the device at these or any other

conditions above those indicated in the operational sections of this

specification is not implied. Exposure to absolute maximum rating

con-

ditions for extended periods may affect reliability. No terminal voltage may

3. Outputs and I/O terminals only.

°C, f = 1.0MHz)

Symbol

Conditions

Typ.

Max.

Unit

Input

Capacitance

6

10

pF

Output

Capacitance

8

12

pF

NOTE:

2605 tbl 02

1. This parameter is measured at characterization but not tested.

2605 tbl 04

Pin Names

Description

Address Inputs

E

Enable Input (Active LOW)

Outputs (Active LOW)

Inputs

Outputs

EE

O

O

O

O

HX

X

H

H

H

H

LLL

L

H

H

H

LH

L

H

L

H

H

LL

H

H

H

L

H

LH

H

H

H

H

L