SN54HC126, SN74HC126

QUADRUPLE BUS BUFFER GATES

WITH 3-STATE OUTPUTS

SCLS103C – MARCH 1984 – REVISED FEBRUARY 1999

1

POST OFFICE BOX 655303

Directly With System Bus or Can Drive up

to 15 LSTTL Loads

Small-Outline (D), Shrink Small-Outline

(DB), and Ceramic Flat (W) Packages,

Ceramic Chip Carriers (FK), and Standard

Plastic (N) and Ceramic (J) DIPs

description

These quadruple bus buffer gates feature

independent line drivers with 3-state outputs.

Each output is disabled when the associated

output-enable (OE) input is low.

The SN54HC126 is characterized for operation

over the full military temperature range of –55

°C

to 125

°C. The SN74HC126 is characterized for

operation from –40

°C to 85°C.

FUNCTION TABLE

(each buffer)

INPUTS

OUTPUT

OE

A

Y

H

H

H

H

LL

L

X

Z

EN

1

2

1A

1Y

3

4

5

2A

2Y

6

10

9

3A

3Y

8

13

12

4A

4Y

11

1OE

2OE

3OE

4OE

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

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

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.

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1OE

1A

1Y

2OE

2A

2Y

GND

4OE

4A

4Y

3OE

3A

3Y

32 1 20 19

910 11 1213

4

5

6

7

8

18

17

16

15

14

4A

NC

4Y

NC

3OE

1Y

NC

2OE

NC

2A

SN54HC126 . . . FK PACKAGE

(TOP VIEW)

NC – No internal connection

SN54HC126 ...J OR W PACKAGE

SN74HC126 . . . D, DB, OR N PACKAGE

(TOP VIEW)

Copyright

© 1999, 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.