74HC21D datasheet(3/14 Pages) NXP

No de pièce	74HC21D

Description	Dual 4-input AND gate

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74HC21_5

Product data sheet

Rev. 05 — 7 May 2009

3 of 14

NXP Semiconductors

74HC21

Dual 4-input AND gate

5.2 Pin description

6.

Functional description

[1]

H = HIGH voltage level; L = LOW voltage level; X = don’t care.

7.

Limiting values

[1]

The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

[2]

For DIP14 package: Ptot derates linearly with 12 mW/K above 70 °C.

For SO14 package: Ptot derates linearly with 8 mW/K above 70 °C.

For (T)SSOP14 packages: Ptot derates linearly with 5.5 mW/K above 60 °C.

Table 2.

Pin description

Symbol

Description

1A, 1B, 1C, 1D

1, 2, 4, 5

data input

n.c.

3, 11

not connected

1Y

6

data output

GND

7

ground (0 V)

2Y

8

data output

2A, 2B, 2C, 2D

9, 10, 12, 13

data input

VCC

14

supply voltage

Table 3.

Function table[1]

Input

Output

nA

nB

nC

nD

nY

L

XXXL

XL

XXL

XL

XXXL

L

HHHHH

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

−0.5

+7

V

IIK

input clamping current

VI < −0.5 V or VI >VCC + 0.5 V

[1] -

±20

mA

IOK

output clamping current

VO < −0.5 V or VO >VCC + 0.5 V

[1] -

±20

mA

IO

output current

−0.5 V < VO < VCC + 0.5 V

-

±25

mA

ICC

supply current

-

50

mA

IGND

ground current

−50

-

mA

Tstg

storage temperature

−65

+150

°C

Ptot

total power dissipation

[2]

DIP14 package

-

750

mW

SO14 and (T)SSOP14

packages

-

500

mW

Numéro de pièce similaire - 74HC21D

Fabricant	No de pièce	Fiches technique	Description
Toshiba Semiconductor	74HC21D	189Kb / 8P	CMOS Digital Integrated Circuits Silicon Monolithic 2020-11-10 Rev.3.0
Nexperia B.V. All right...	74HC21D	223Kb / 11P	Dual 4-input AND gate Rev. 9 - 2 May 2023

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Fabricant	No de pièce	Fiches technique	Description
Integral Corp.	IN74HC21A	38Kb / 5P	Dual 4-Input AND Gate
	IN74ACT21	133Kb / 4P	DUAL 4-INPUT AND GATE
	IN74HCT21A	38Kb / 5P	Dual 4-Input AND Gate
KODENSHI_AUK CORP.	KK74HC21A	251Kb / 5P	Dual 4-Input AND Gate
Nexperia B.V. All right...	HEF4082B-Q100	717Kb / 11P	Dual 4-input AND gate
NXP Semiconductors	HEF4082B	26Kb / 3P	Dual 4-input AND gate January 1995
Toshiba Semiconductor	TC74VHC21F	190Kb / 5P	DUAL 4-INPUT AND GATE
KODENSHI_AUK CORP.	KK74HCT21A	249Kb / 5P	Dual 4-Input AND Gate
IK Semicon Co., Ltd	IN74HC21A	236Kb / 5P	Dual 4-Input AND Gate
Toshiba Semiconductor	TC74VHC21F	210Kb / 9P	Dual 4-Input AND Gate
Nexperia B.V. All right...	HEF4082B	198Kb / 9P	Dual 4-input AND gate Rev. 7 - 24 February 2022

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