Nexperia

74HC73

Dual JK flip-flop with reset; negative-edge trigger

4. Functional diagram

001aab981

Q

1Q 12

1J

14

Q

R

1Q 13

J

1CP

1

1K

3

1R

2

CP

FF1

K

Q

2Q 9

2J

7

Q

R

2Q 8

J

2CP

5

2K

10

2R

6

CP

FF2

K

Fig. 1. Functional diagram

001aab979

Q 1Q 12

2Q 9

1J

14

2J

7

Q

R

1Q 13

2Q 8

J

1CP

1

2CP

5

1K

3

2K

1R 2R

2 6

10

CP

FF

K

Fig. 2. Logic symbol

001aab980

13

12

1J

1K

3

R

2

1

14

C1

8

9

1J

1K

10

R

6

5

7

C1

Fig. 3. IEC logic symbol

001aab982

C

C

K

J

R

CP

C

C

C

C

C

C

C

C

Q

Q

Fig. 4. Logic diagram (one flip-flop)

74HC73

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 7 — 13 September 2021

2 / 13