SN54HC74 datasheet(6/41 Pages) TI2

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6.6 Electrical Characteristics - 54

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

PARAMETER

TEST CONDITIONS

VCC

Operating free-air temperature (TA)

UNIT

25°C

–40°C to 85°C

–55°C to 125°C

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

VOH High-level

output voltage

VI = VIH or

VIL

IOH = -20

µA

2 V

1.9

1.998

1.9

4.5 V

4.4

4.499

4.4

6 V

5.9

5.999

5.9

IOH = -6

4.5 V

3.98

4.3

3.84

3.7

IOH = -7.8

6 V

5.48

5.8

5.34

5.2

VOL

Low-level output

voltage

VI = VIH or

VIL

IOL = 20

µA

2 V

0.002

0.1

4.5 V

0.001

0.1

6 V

0.001

0.1

IOL = 6 mA 4.5 V

0.17

0.26

0.33

0.4

IOL = 7.8

6 V

0.15

0.26

0.33

0.4

Input leakage

current

VI = VCC or 0

6 V

±0.1

±1

µA

ICC Supply current

VI = VCC or

IO = 0

6 V

µA

Input

capacitance

2 V to

6 V

6.7 Timing Requirements - 74

over operating free-air temperature range (unless otherwise noted)

VCC

Operating free-air temperature (TA)

UNIT

25°C

–40°C to 85°C

MIN

TYP

MAX

MIN

TYP

MAX

fclock

Clock frequency

2 V

MHz

4.5 V

6 V

Pulse duration

PRE or CLR low

2 V

100

125

4.5 V

6 V

CLK high or low

2 V

100

4.5 V

6 V

tsu

Setup time before CLK↑

Data

2 V

100

125

4.5 V

6 V

PRE or CLR

inactive

2 V

4.5 V

6 V

Hold time, data after CLK↑

2 V

4.5 V

6 V

SN74HC74, SN54HC74

SCLS094F – DECEMBER 1982 – REVISED JUNE 2021

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