SN54AC244, SN74AC244

OCTAL BUFFERS/DRIVERS

WITH 3STATE OUTPUTS

SCAS514E − JUNE 1995 − REVISED OCTOBER 2003

1

POST OFFICE BOX 655303

description/ordering information

These octal buffers and line drivers are designed

specifically to improve the performance and

density of 3-state memory address drivers, clock

drivers,

and

bus-oriented

receivers

and

transmitters.

The ’AC244 devices are organized as two 4-bit

buffers/drivers with separate output-enable (OE)

inputs. When OE is low, the device passes

noninverted data from the A inputs to the Y

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

high-impedance state.

To ensure the high-impedance state during power

through a pullup resistor; the minimum value of

the resistor is determined by the current-sinking

capability of the driver.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP − N

Tube

SN74AC244N

SN74AC244N

SOIC − DW

Tube

SN74AC244DW

AC244

SOIC − DW

Tape and reel

SN74AC244DWR

AC244

−40

°C to 85°C

SOP − NS

Tape and reel

SN74AC244NSR

AC244

−40 C to 85 C

SSOP − DB

Tape and reel

SN74AC244DBR

AC244

TSSOP − PW

Tube

SN74AC244PW

AC244

TSSOP − PW

Tape and reel

SN74AC244PWR

AC244

CDIP − J

Tube

SNJ54AC244J

SNJ54AC244J

−55

°C to 125°C

CFP − W

Tube

SNJ54AC244W

SNJ54AC244W

−55 C to 125 C

LCCC − FK

Tube

SNJ54AC244FK

SNJ54AC244FK

† 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.

SN54AC244 ...J OR W PACKAGE

SN74AC244 . . . DB, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

3

2

1 20 19

9 10 11 12 13

4

5

6

7

8

18

17

16

15

14

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

SN54AC244...FK PACKAGE

(TOP VIEW)

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

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.