SN54ABT240, SN74ABT240A

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCBS098I – JANUARY 1991 – REVISED JUNE 2002

1

POST OFFICE BOX 655303

Operation

JEDEC Standard JESD-17

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

description

These octal buffers and line drivers are designed

specifically to improve both the performance and

density of 3-state memory address drivers, clock

drivers,

and

bus-oriented

receivers

and

transmitters. Together with the SN54ABT241,

SN74ABT241A,

SN54ABT244,

and

SN74ABT244A, these devices provide the choice

of

selected

combinations

of

inverting

and

noninverting outputs, symmetrical active-low

output-enable (OE) inputs, and complementary

OE and OE inputs.

The

SN54ABT240

and

SN74ABT240A

are

organized as two 4-bit buffers/line drivers with

separate OE inputs. When OE is low, the devices

pass inverted data from the A inputs to the Y

outputs. When OE is high, the outputs are in the

high-impedance state.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N

Tube

SN74ABT240AN

SN74ABT240AN

SOIC

DW

Tube

SN74ABT240ADW

ABT240A

40

°Cto85°C

SOIC – DW

Tape and reel

SN74ABT240ADWR

ABT240A

–40

°C to 85°C

SOP – NS

Tape and reel

SN74ABT240ANSR

ABT240A

SSOP – DB

Tape and reel

SN74ABT240ADBR

AB240A

TSSOP – PW

Tape and reel

SN74ABT240APWR

AB240A

CDIP – J

Tube

SNJ54ABT240J

SNJ54ABT240J

–55

°C to 125°C

CFP – W

Tube

SNJ54ABT240W

SNJ54ABT240W

LCCC – FK

Tube

SNJ54ABT240FK

SNJ54ABT240FK

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

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

Copyright

 2002, 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.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

SN54ABT240 ...J OR W PACKAGE

SN74ABT240A . . . DB, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

32

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

SN54ABT240 . . . FK PACKAGE

(TOP VIEW)

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.