SN54HC21, SN74HC21

DUAL 4INPUT POSITIVEAND GATES

SCLS087E − DECEMBER 1982 − REVISED AUGUST 2003

1

POST OFFICE BOX 655303

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1A

1B

NC

1C

1D

1Y

GND

2D

2C

NC

2B

2A

2Y

SN54HC21 ...J OR W PACKAGE

SN74HC21 . . . D, N, NS, OR PW PACKAGE

(TOP VIEW)

32 1 20 19

910 11 1213

4

5

6

7

8

18

17

16

15

14

2C

NC

NC

NC

2B

NC

NC

1C

NC

1D

SN54HC21 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

description/ordering information

These devices contain two independent 4-input AND gates. They perform the Boolean function

Y

+ A • B • C • Dor

Y

+ A ) B ) C ) D in positive logic.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP − N

Tube of 25

SN74HC21N

SN74HC21N

Tube of 50

SN74HC21D

SOIC − D

Reel of 2500

SN74HC21DR

HC21

−40

°C to 85°C

SOIC − D

Reel of 250

SN74HC21DT

HC21

−40

°C to 85°C

SOP − NS

Reel of 2000

SN74HC21NSR

HC21

Tube of 90

SN74HC21PW

TSSOP − PW

Reel of 2000

SN74HC21PWR

HC21

TSSOP − PW

Reel of 250

SN74HC21PWT

HC21

CDIP − J

Tube of 25

SNJ54HC21J

SNJ54HC21J

−55

°C to 125°C

CFP − W

Tube of 150

SNJ54HC21W

SNJ54HC21W

−55 C to 125 C

LCCC − FK

Tube of 55

SNJ54HC21FK

SNJ54HC21FK

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright

 2003, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

On products compliant to MILPRF38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.