SN74LVT240A

3.3V ABT OCTAL BUFFER/DRIVER

WITH 3STATE OUTPUTS

SCBS134K − SEPTEMBER 1992 − REVISED JANUARY 2004

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 4)

MIN

MAX

UNIT

VCC

Supply voltage

2.7

3.6

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VI

Input voltage

5.5

V

IOH

High-level output current

−32

mA

IOL

Low-level output current

64

mA

∆t/∆v

Input transition rise or fall rate

Outputs enabled

5

ns/V

∆t/∆VCC

Power-up ramp rate

200

µs/V

TA

Operating free-air temperature

−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.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 2.7 V,

II = −18 mA

−1.2

V

VCC = 2.7 V to 3.6 V,

IOH = −100 µA

VCC−0.2

VOH

VCC = 2.7 V,

IOH = − 8 mA

2.4

V

VOH

VCC = 3 V,

IOH = − 32 mA

2

V

VCC = 2.7 V

IOL = 100 µA

0.2

VCC = 2.7 V

IOL = 24 mA

0.5

VOL

IOL = 16 mA

0.4

V

VOL

VCC = 3 V

IOL = 32 mA

0.5

V

VCC = 3 V

IOL = 64 mA

0.55

VCC = 0 or 3.6 V,

VI = 5.5 V

10

II

VI = VCC or GND

Control inputs

±1

A

II

VCC = 3.6 V

VI = VCC

Data inputs

1

µA

VCC = 3.6 V

VI = 0

Data inputs

−5

Ioff

VCC = 0,

VI or VO = 0 to 4.5 V

±100

µA

IOZH

VCC = 3.6 V,

VO = 3 V

5

µA

IOZL

VCC = 3.6 V,

VO = 0.5 V

−5

µA

IOZPU

VCC = 0 to 1.5 V,

VO = 0.5 V to 3 V,

OE = don’t care

±100

µA

IOZPD

VCC = 1.5 V to 0,

VO = 0.5 V to 3 V,

OE = don’t care

±100

µA

VCC = 3.6 V,

IO = 0,

Outputs high

0.19

ICC

VCC = 3.6 V,

VI = VCC or GND

IO = 0,

Outputs low

5

mA

ICC

VI = VCC or GND

Outputs disabled

0.19

mA

∆ICC‡

VCC = 3 V to 3.6 V, One input at VCC − 0.6 V, Other inputs at VCC or GND

0.2

mA

Ci

VI = 3 V or 0

4

pF

Co

VO = 3 V or 0

7

pF

† All typical values are at VCC = 3.3 V, TA = 25°C.

‡ This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.