IDT54/74FCT240/241/244/540/541/A/C

FAST CMOS OCTAL BUFFER/LINE DRIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

7.8

3

PIN DESCRIPTION

FUNCTION TABLE

NOTE:

2606 tbl 04

NOTES:

2606 tbl 05

1. H = High Voltage Level

X = Don’t Care

L = Low Voltage Level

Z = High Impedance

ABSOLUTE MAXIMUM RATINGS

(1)

°C, f = 1.0MHz)

NOTES:

2606 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

conditions for extended periods may affect reliability. No terminal voltage

3. Outputs and I/O terminals only.

Symbol

Conditions

Typ.

Max.

Unit

Input

Capacitance

6

10

pF

Output

Capacitance

8

12

pF

NOTE:

2606 tbl 02

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

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

Pin Names

Description

3–State Output Enable Inputs (Active LOW)

3–State Output Enable Input (Active HIGH)

Dxx

Inputs

Oxx

Outputs

OE

OE

D

240

241

244

540

541

LLH

L

H

L

LH

L

LLH

H

L

H

H

L

H

HHL

X

Z

Z

Z

Z

Z