74VHCT20AMTR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

View to exact match

74VHCT20AMTR

DUAL 4-INPUT NAND GATE

STMicroelectronics 

74VHCT20A

INPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

1, 9

2, 10

3, 11

4, 12

5, 13

6, 8

7

14

SYMBOL

1A to 2A

1B to 2B

N.C.

1C to 2C

1D to 2D

1Y to 2Y

GND

VCC

NAME AND FUNCTION

Data Inputs

Data Inputs

Not Connected

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

Parameter

Value

Unit

VCC Supply Voltage

-0.5 to +7.0

V

VI

DC Input Voltage

-0.5 to +7.0

V

VO

DC Output Voltage (see note 1)

-0.5 to +7.0

V

VO

DC Output Voltage (see note 2)

-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

± 25

mA

ICC or IGND DC VCC or Ground Current

± 50

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

1) VCC = 0V

2) High or Low State

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

VCC Supply Voltage

VI

Input Voltage

VO

Output Voltage (see note 1)

VO

Output Voltage (see note 2)

Top

Operating Temperature

dt/dv Input Rise and Fall Time (see note 3)

1) VCC = 0V

2) High or Low State

3) VIN from 0.8V to 2V

(VCC = 5.0 ± 0.5V)

Value

4.5 to 5.5

0 to 5.5

0 to 5.5

0 to VCC

-55 to 125

0 to 20

Unit

V

V

V

V

°C

ns/V

2/7

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