74AC240

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INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

X : Don’t Care

Z : High Impedance

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occour. Functional operation under these conditions

is not implied.

RECOMMENDED OPERATING CONDITIONS

PIN No

SYMBOL

NAME AND FUNCTION

11G

Output Enable Input

2, 4, 6, 8

1A1 to 1A4

Data Inputs

9, 7, 5, 3

2Y1 to 2Y4

Data Outputs

11, 13, 15,

17

2A1 to 2A4

Data Inputs

18, 16, 14,

12

1Y1 to 1Y4

Data Outputs

19

2G

Output Enable Input

10

GND

Ground (0V)

20

Positive Supply Voltage

INPUTS

OUTPUT

G

An

Yn

LL

H

LH

L

HX

Z

Symbol

Parameter

Value

Unit

Supply Voltage

-0.5 to +7

V

DC Input Voltage

V

DC Output Voltage

V

DC Input Diode Current

± 20

mA

DC Output Diode Current

± 20

mA

DC Output Current

± 50

mA

± 400

mA

Storage Temperature

-65 to +150

°C

Lead Temperature (10 sec)

300

°C

Symbol

Parameter

Value

Unit

Supply Voltage

2 to 6

V

Input Voltage

V

Output Voltage

V

Operating Temperature

-55 to 125

°C

dt/dv

8

ns/V