SN54LV161A, SN74LV161A

4BIT SYNCHRONOUS BINARY COUNTERS

SCLS404E − APRIL 1998 − REVISED APRIL 2005

7

POST OFFICE BOX 655303

recommended operating conditions (see Note 4)

SN54LV161A

SN74LV161A

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

2

5.5

2

5.5

V

VCC = 2 V

1.5

1.5

VIH

High-level input voltage

VCC = 2.3 V to 2.7 V

VCC × 0.7

VCC × 0.7

V

VIH

High-level input voltage

VCC = 3 V to 3.6 V

VCC × 0.7

VCC × 0.7

V

VCC = 4.5 V to 5.5 V

VCC × 0.7

VCC × 0.7

VCC = 2 V

0.5

0.5

VIL

Low-level input voltage

VCC = 2.3 V to 2.7 V

VCC × 0.3

VCC × 0.3

V

VIL

Low-level input voltage

VCC = 3 V to 3.6 V

VCC × 0.3

VCC × 0.3

V

VCC = 4.5 V to 5.5 V

VCC × 0.3

VCC × 0.3

VI

Input voltage

0

5.5

0

5.5

V

VO

Output voltage

0

VCC

0

VCC

V

VCC = 2 V

−50

−50

µA

IOH

High-level output current

VCC = 2.3 V to 2.7 V

−2

−2

IOH

High-level output current

VCC = 3 V to 3.6 V

−6

−6

mA

VCC = 4.5 V to 5.5 V

−12

−12

mA

VCC = 2 V

50

50

µA

IOL

Low-level output current

VCC = 2.3 V to 2.7 V

2

2

IOL

Low-level output current

VCC = 3 V to 3.6 V

6

6

mA

VCC = 4.5 V to 5.5 V

12

12

mA

VCC = 2.3 V to 2.7 V

0

200

0

200

∆t/∆v

Input transition rise or fall rate

VCC = 3 V to 3.6 V

0

100

0

100

ns/V

∆t/∆v

Input transition rise or fall rate

VCC = 4.5 V to 5.5 V

0

20

0

20

ns/V

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.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

SN54LV161A

SN74LV161A

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

IOH = −50 µA

2 V to 5.5 V

VCC−0.1

VCC−0.1

VOH

IOH = −2 mA

2.3 V

2

2

V

VOH

IOH = −6 mA

3 V

2.48

2.48

V

IOH = −12 mA

4.5 V

3.8

3.8

IOL = 50 µA

2 V to 5.5 V

0.1

0.1

VOL

IOL = 2 mA

2.3 V

0.4

0.4

V

VOL

IOL = 6 mA

3 V

0.44

0.44

V

IOL = 12 mA

4.5 V

0.55

0.55

II

VI = 5.5 V or GND

0 to 5.5 V

±1

±1

µA

ICC

VI = VCC or GND,

IO = 0

5.5 V

20

20

µA

Ioff

VI or VO = 0 to 5.5 V

0

5

5

µA

Ci

VI = VCC or GND

3.3 V

1.8

1.8

pF

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.