HD74HC109 datasheet(4/9 Pages) HITACHI | Dual J-K Flip-Flops (with Preset and Clear)

Part No.	HD74HC109

Description	Dual J-K Flip-Flops (with Preset and Clear)

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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4 / 9 page

HD74HC109

4

AC Characteristics (C

L = 50 pF, Input tr = tf = 6 ns)

Ta = 25

°C

Ta = –40 to

+85

°C

Item

Symbol

V

CC (V)

Min Typ Max Min

Max

Unit

Test Conditions

Maximum clock

f

max

2.0

—

5

—

4

MHz

frequency

4.5

—

27

—

21

6.0

—

32

—

25

Propagation delay t

PLH

2.0

—

175 —

220

ns

Clock to Q or

Q

time

t

PHL

4.5

—

15

35

—

44

6.0

—

30

—

37

2.0

—

190 —

240

ns

Preset or Clear to Clock

4.5

—

14

38

—

48

6.0

—

32

—

41

Removal time

t

rem

2.0

25

—

32

—

ns

4.5

5

1

—

6

—

6.0

4

—

5

—

Setup time

t

su

2.0

100 —

—

125

—

ns

4.5

20

4

—

25

—

6.0

17

—

21

—

Hold time

t

h

2.0

0

—

0

—

ns

4.5

0

–4

—

0

—

6.0

0

—

0

—

Pulse width

t

w

2.0

80

—

100

—

ns

4.5

16

5

—

20

—

6.0

14

—

17

—

Output rise/fall

t

TLH

2.0

—

75

—

90

ns

time

t

THL

4.5

—

5

15

—

19

6.0

—

13

—

16

Input capacitance

Cin

—

5

10

—

10

pF

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