SN54LVTT244, SN74LVTT244

3.3V ABT OCTAL BUFFERS/DRIVERS

WITH 3STATE OUTPUTS

SCES006 − FEBRUARY 1995

3

POST OFFICE BOX 655303

POST OFFICE BOX 1443

−0.5 V to 4.6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.5 V to 7 V

. . . .

96 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74LVTT244

128 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48 mA

. . . . . . . . . . . . . . . . . . . . . . . .

SN74LVTT244

64 mA

. . . . . . . . . . . . . . . . . . . . . . . .

−50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.6 W

. . . . . . . . . . . . . . . . . . . .

DW package

1.6 W

. . . . . . . . . . . . . . . . . . .

PW package

0.7 W

. . . . . . . . . . . . . . . . . . .

Storage temperature range

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2. This current flows only when the output is in the high state and VO > VCC.

3. The maximum package power dissipation is calculated using a junction temperature of 150

°C and a board trace length of 750 mils.

For more information, refer to the Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology

Data Book, literature number SCBD002B.

recommended operating conditions (see Note 4)

SN54LVTT244

SN74LVTT244

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

2.7

3.6

2.7

3.6

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.8

0.8

V

VI

Input voltage

5.5

5.5

V

IOH

High-level output current

−24

−32

mA

IOL

Low-level output current

48

64

mA

∆t/∆v

Input transition rise or fall rate

Outputs enabled

10

10

ns / V

TA

Operating free-air temperature

−55

125

−40

85

°C

NOTE 4: Unused or floating control inputs must be held high or low.

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.