SN54LV244, SN74LV244

OCTAL BUFFERS/DRIVERS

WITH 3STATE OUTPUTS

SCLS194C − FEBRUARY 1993 − REVISED APRIL 1996

3

POST OFFICE BOX 655303

POST OFFICE BOX 1443

recommended operating conditions (see Note 4)

SN54LV244

SN74LV244

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

2.7

5.5

2.7

5.5

V

VIH

High-level input voltage

VCC = 2.7 V to 3.6 V

2

2

V

VIH

High-level input voltage

VCC = 4.5 V to 5.5 V

3.15

3.15

V

VIL

Low-level input voltage

VCC = 2.7 V to 3.6 V

0.8

0.8

V

VIL

Low-level input voltage

VCC = 4.5 V to 5.5 V

1.65

1.65

V

VI

Input voltage

0

VCC

0

VCC

V

VO

Output voltage

0

VCC

0

VCC

V

IOH

High-level output current

VCC = 2.7 V to 3.6 V

−8

−8

mA

IOH

High-level output current

VCC = 4.5 V to 5.5 V

−16

−16

mA

IOL

Low-level output current

VCC = 2.7 V to 3.6 V

8

8

mA

IOL

Low-level output current

VCC = 4.5 V to 5.5 V

16

16

mA

∆t/∆v

Input transition rise or fall rate

0

100

0

100

ns / V

TA

Operating free-air temperature

−55

125

−40

85

°C

NOTE 4: Unused inputs must be held high or low to prevent them from floating.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC†

SN54LV244

SN74LV244

UNIT

PARAMETER

TEST CONDITIONS

VCC†

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

IOH = −100 µA

MIN to MAX

VCC − 0.2

VCC − 0.2

VOH

IOH = −8 mA

3 V

2.4

2.4

V

VOH

IOH = −16 mA

4.5 V

3.6

3.6

V

IOL = 100 µA

MIN to MAX

0.2

0.2

VOL

IOL = 8 mA

3 V

0.4

0.4

V

VOL

IOL = 16 mA

4.5 V

0.55

0.55

V

II

VI = VCC or GND

3.6 V

±1

±1

A

II

VI = VCC or GND

5.5 V

±1

±1

µA

IOZ

VO = VCC or GND

3.6 V

±5

±5

A

IOZ

VO = VCC or GND

5.5 V

±5

±5

µA

ICC

VI = VCC or GND,

IO = 0

3.6 V

20

20

A

ICC

VI = VCC or GND,

IO = 0

5.5 V

20

20

µA

nICC

One input at VCC − 0.6 V,

Other inputs at VCC or GND

3 V to 3.6 V

500

500

µA

Ci

VI = VCC or GND

3.3 V

3

3

pF

Ci

VI = VCC or GND

5 V

3

3

pF

Co

VO = VCC or GND

3.3 V

8

8

pF

Co

VO = VCC or GND

5 V

8

8

pF

† For conditions shown as MIN or MAX, use the appropriate values under recommended operating conditions.

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.