IOL Output Low Current (mA)

0

0.0009

0.0018

0.0027

0.0036

0.0045

0.0054

0

0.015

0.03

0.045

0.06

0.075

0.09

0.105

0.12

0.135

0.15

D001

2 V

4.5 V

6 V

IOH Output High Current (mA)

0

0.001

0.002

0.003

0.004

0.005

0.006

0

1

2

3

4

5

6

7

D002

2 V

4.5 V

6 V

6

SN74HC74-Q1

SCLS577B – MARCH 2004 – REVISED APRIL 2020

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6.7 Switching Characteristics

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

PARAMETER

FROM

TO

VCC

Operating free-air temperature (TA)

UNIT

25°C

–40°C to 125°C

MIN

TYP

MAX

MIN

TYP

MAX

fmax

Max switching frequency

2 V

6

10

4.2

MHz

4.5 V

31

50

21

6 V

36

60

25

tpd

Propagation delay

PRE or

CLR

Q or Q

2 V

70

230

345

ns

4.5 V

20

46

69

6 V

15

39

59

CLK

Q or Q

70

175

250

20

35

50

15

30

42

tt

Transition-time

Q or Q

2 V

28

75

110

ns

4.5 V

8

15

22

6 V

6

13

19

6.8 Operating Characteristics

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Cpd

Power dissipation capacitance per gate

No load

35

pF

6.9 Typical Characteristics

TA = 25°C

Figure 1. Output voltage versus output current in low state

Figure 2. Output voltage versus output current in high state