SN54F38, SN74F38

QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS

WITH OPEN-COLLECTOR OUTPUTS

SDFS013A – MARCH 1987 – REVISED OCTOBER 1993

Copyright

2–1

POST OFFICE BOX 655303

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

description

These devices contain four independent 2-input

NAND buffer gates with open-collector outputs.

They perform the Boolean functions Y = A

• B or

Y = A + B in positive logic.

The

open-collector

outputs

require

pullup

resistors to perform correctly. They may be

connected to other open-collector outputs to

implement active-low wired-OR or active-high

wired-AND functions. Open-collector devices are

The SN54F38 is characterized for operation over

the full military temperature range of – 55

°C to

125

°C. The SN74F38 is characterized for

operation from 0

°C to 70°C.

FUNCTION TABLE

(each gate)

INPUTS

OUTPUT

A

B

Y

H

H

L

L

XH

X

L

H

logic diagram (positive logic)

1

1A

2

1B

4

2A

5

2B

9

3A

10

3B

12

4A

13

4B

&

1Y

3

2Y

6

3Y

8

4Y

11

1Y

3

1

1A

2

1B

2Y

6

4

2A

5

2B

3Y

8

9

3A

10

3B

4Y

11

12

4A

13

4B

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and

IEC Publication 617-12.

Pin numbers shown are for the D, J, and N packages.

SN54F38 ...J PACKAGE

SN74F38 ...D OR N PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1A

1B

1Y

2A

2B

2Y

GND

4B

4A

4Y

3B

3A

3Y

SN54F38 . . . FK PACKAGE

(TOP VIEW)

32

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

4A

NC

4Y

NC

3B

1Y

NC

2A

NC

2B

NC – No internal connection

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.