SN54LVC540A, SN74LVC540A

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS297H – JANUARY 1993 – REVISED JUNE 1998

3

POST OFFICE BOX 655303

–0.5 V to 6.5 V

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

–0.5 V to 6.5 V

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

(see Note 1)

–0.5 V to 6.5 V

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

(see Notes 1 and 2)

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

–50 mA

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

–50 mA

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

±50 mA

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

±100 mA

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

Package thermal impedance,

115

°C/W

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

DW package

97

°C/W

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

PW package

128

°C/W

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

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

2. The value of VCC is provided in the recommended operating conditions table.

3. The package thermal impedance is calculated in accordance with JESD 51.

recommended operating conditions (see Note 4)

SN54LVC540A

SN74LVC540A

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

Operating

2

3.6

1.65

3.6

V

VCC

Supply voltage

Data retention only

1.5

1.5

V

VCC = 1.65 V to 1.95 V

0.65

× VCC

VIH

High-level input voltage

VCC = 2.3 V to 2.7 V

1.7

V

VCC = 2.7 V to 3.6 V

2

2

VCC = 1.65 V to 1.95 V

0.35

× VCC

VIL

Low-level input voltage

VCC = 2.3 V to 2.7 V

0.7

V

VCC = 2.7 V to 3.6 V

0.8

0.8

VI

Input voltage

0

5.5

0

5.5

V

VO

Output voltage

High or low state

0

VCC

0

VCC

V

VO

Output voltage

3 state

0

5.5

0

5.5

V

VCC = 1.65 V

–4

IOH

High level output current

VCC = 2.3 V

–8

mA

IOH

High-level output current

VCC = 2.7 V

–12

–12

mA

VCC = 3 V

–24

–24

VCC = 1.65 V

4

IOL

Low level output current

VCC = 2.3 V

8

mA

IOL

Low-level output current

VCC = 2.7 V

12

12

mA

VCC = 3 V

24

24

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.