74ACT20 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

74ACT20

DUAL 4-INPUT NAND GATE

STMicroelectronics 

74ACT20

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

1, 9

2, 10

3, 11

5, 13

6, 8

7

14

SYMBOL

1A to 2A

1B to 2B

1C to 2C

1C to 2D

1Y to 2Y

GND

VCC

NAME AND FUNCTION

Data Inputs

Data Inputs

Data Inputs

Data Inputs

Data Outputs

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

A

B

C

D

Y

L

X

X

X

H

X

L

X

X

H

X

X

L

X

H

X

X

X

L

H

H

H

H

H

L

X : Don’t Care

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter²

Value

Unit

VCC Supply Voltage

-0.5 to +7

V

VI

DC Input Voltage

-0.5 to VCC + 0.5

V

VO

DC Output Voltage

-0.5 to VCC + 0.5

V

IIK

DC Input Diode Current

± 20

mA

IOK

DC Output Diode Current

± 20

mA

IO

DC Output Current

± 50

mA

ICC or IGND DC VCC or Ground Current

± 100

mA

Tstg Storage Temperature

-65 to +150

°C

TL

Lead Temperature (10 sec)

300

°C

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

Symbol

Parameter

VCC Supply Voltage

VI

Input Voltage

VO

Output Voltage

Top

Operating Temperqture

dt/dv Input Rise and Fall Time VCC = 4.5 to 5.5V (note 1)

1) VIN from 0.8V to 2.0V

Value

4.5 to 5.5

0 to VCC

0 to VCC

-55 to 125

8

Unit

V

V

V

°C

ns/V

2/8

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