74ACT245

2/9

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 occur. Functional operation under these conditions is

not implied.

RECOMMENDED OPERATING CONDITIONS

PIN No

SYMBOL

NAME AND FUNCTION

1

DIR

Directional Control

2, 3, 4, 5, 6,

7, 8, 9

A1 to A8

Data Inputs/Outputs

18, 17, 16,

15, 14, 13,

12, 11

B1 to B8

Data Inputs/Outputs

19

G

Output Enable Input

10

GND

Ground (0V)

20

Positive Supply Voltage

INPUTS

FUNCTION

OUTPUT

G

DIR

A BUS

B BUS

Yn

L

L

OUTPUT

INPUT

A = B

L

H

INPUT

OUTPUT

B = A

HX

Z

Z

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

4.5 to 5.5

V

Input Voltage

V

Output Voltage

V

Operating Temperature

-55 to 125

°C

dt/dv

8

ns/V