74ACT20

2/8

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

X : Don’t Care

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, 9

1A to 2A

Data Inputs

2, 10

1B to 2B

Data Inputs

3, 11

1C to 2C

Data Inputs

5, 13

1C to 2D

Data Inputs

6, 8

1Y to 2Y

Data Outputs

7

GND

Ground (0V)

14

Positive Supply Voltage

A

BCD

Y

L

XXX

H

XL

X

X

H

X

XLX

H

XX

X

L

H

H

HHH

L

Symbol

Parameter²

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

± 100

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 Temperqture

-55 to 125

°C

dt/dv

8

ns/V