6.5 Electrical Characteristics

over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted).

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX UNIT

VT+

Positive switching threshold

2 V

0.7

1.5

V

4.5 V

1.7

3.15

6 V

2.1

4.2

VT-

Negative switching threshold

2 V

0.3

1.0

V

4.5 V

0.9

2.2

6 V

1.2

3.0

ΔVT

Hysteresis (VT+ - VT-)(1)

2 V

0.2

1.0

V

4.5 V

0.4

1.4

6 V

0.6

1.6

VOH

High-level output voltage

VI = VIH or VIL

IOH = -20 µA

2 V to 6 V

VCC – 0.1

VCC – 0.002

V

IOH = -6 mA

4.5 V

4.0

4.3

IOH = -7.8 mA

6 V

5.4

5.75

VOL

Low-level output voltage

VI = VIH or VIL

IOL = 20 µA

2 V to 6 V

0.002

0.1

V

IOL = 6 mA

4.5 V

0.18

0.30

IOL = 7.8 mA

6 V

0.22

0.33

II

Input leakage current

VI = VCC or 0

6 V

±100

±1000

nA

ICC

Supply current

VI = VCC or 0, IO = 0

6 V

0.1

2

µA

Ci

Input capacitance

2 V to 6 V

5

pF

(1)

Guaranteed by design.

6.6 Switching Characteristics

CL = 50 pF; over operating free-air temperature range (unless otherwise noted). See Parameter Measurement Information.

PARAMETER

FROM

TO

VCC

Operating free-air temperature (TA)

UNIT

25°C

–40°C to 125°C

MIN

TYP

MAX

MIN

TYP

MAX

tpd

Propagation delay

A, B, or C Y or W

2 V

21

32

55

ns

4.5 V

8

12

20

6 V

7

11

17

Any D

Y or W

2 V

22

33

53

4.5 V

9

14

20

6 V

7

11

17

G

Y or W

2 V

19

29

48

4.5 V

8

12

17

6 V

7

11

14

tt

Transition-time

Any output

2 V

9

16

ns

4.5 V

5

9

6 V

4

8

SN74HCS151

SCLS845A – SEPTEMBER 2020 – REVISED OCTOBER 2020

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