Nexperia

74HC174; 74HCT174

Hex D-type flip-flop with reset; positive-edge trigger

4. Functional diagram

aaa-007149

D0

D1

D2

D3

D4

D5

MR

CP

9

1

14

13

11

6

4

3

Q0

Q1

Q2

Q3

Q4

Q5 15

12

10

7

5

2

Fig. 1. Logic symbol

aaa-007150

3

4

6

11

13

14

1

9

C1

1D

R

2

5

7

10

12

15

Fig. 2. IEC logic symbol

aaa-007151

D

CP MR

Q

Q5

D5

D

CP MR

Q

Q4

D4

D

CP MR

Q

Q3

D3

D

CP MR

Q

Q2

D2

D

CP MR

Q

Q1

D1

D

CP MR

Q

FF1

Q0

D0

MR

FF2

FF3

FF4

FF5

FF6

CP

Fig. 3. Logic diagram

5. Pinning information

5.1. Pinning

aaa-007152

MR

VCC

Q0

Q5

D0

D5

D1

D4

Q1

Q4

D2

D3

Q2

Q3

GND

CP

1

2

3

4

5

6

7

8

10

9

12

11

14

13

16

15

74HC174

74HCT174

Fig. 4. Pin configuration SOT109-1 (SO16)

aaa-007154

9

VCC

Q5

D5

D4

Q4

D3

Q3

CP

10

12

11

14

13

16

15

Q0

D0

D1

Q1

D2

Q2

GND

2

3

4

5

6

7

8

MR 1

74HC174

74HCT174

Fig. 5. Pin configuration and SOT403-1 (TSSOP16)

74HC_HCT174

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Product data sheet

Rev. 6 — 1 September 2021

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