SN54LVC257A, SN74LVC257A

QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS

WITH 3STATE OUTPUTS

SCAS294N − JANUARY 1993 − REVISED OCTOBER 2003

1

POST OFFICE BOX 655303

JESD 17

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

SN74LVC257A . . . RGY PACKAGE

(TOP VIEW)

116

89

2

3

4

5

6

7

15

14

13

12

11

10

OE

4A

4B

4Y

3A

3B

1A

1B

1Y

2A

2B

2Y

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A/B

1A

1B

1Y

2A

2B

2Y

GND

OE

4A

4B

4Y

3A

3B

3Y

SN54LVC257A ...J OR W PACKAGE

SN74LVC257A . . . D, DB, NS,

OR PW PACKAGE

(TOP VIEW)

32 1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

4A

4B

NC

4Y

3A

SN54LVC257A . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

1B

1Y

NC

2A

2B

description/ordering information

The ’LVC257A devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in

bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at

a high logic level.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

QFN − RGY

Reel of 1000

SN74LVC257ARGYR

LC257A

Tube of 40

SN74LVC257AD

SOIC − D

Reel of 2500

SN74LVC257ADR

LVC257A

SOIC − D

Reel of 250

SN74LVC257ADT

LVC257A

−40

°C to 85°C

SOP − NS

Reel of 2000

SN74LVC257ANSR

LVC257A

−40 C to 85 C

SSOP − DB

Reel of 2000

SN74LVC257ADBR

LC257A

Tube of 90

SN74LVC257APW

TSSOP − PW

Reel of 2000

SN74LVC257APWR

LC257A

TSSOP − PW

Reel of 250

SN74LVC257APWT

LC257A

CDIP − J

Tube of 25

SNJ54LVC257AJ

SNJ54LVC257AJ

−55

°C to 125°C

CFP − W

Tube of 150

SNJ54LVC257AW

SNJ54LVC257AW

−55 C to 125 C

LCCC − FK

Tube of 55

SNJ54LVC257AFK

SNJ54LVC257AFK

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

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

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.

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.

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.