Nexperia

74HC166; 74HCT166

8-bit parallel-in/serial out shift register

4. Functional diagram

aaa-008816

Q7

13

1

15

6

7

D0

PE

DS

CP CE

D1

D2

D3

D4

D5

D6

D7

2

3

4

5

10

11

12

14

9

MR

Fig. 1. Logic symbol

aaa-008817

6

7

15

2,1D

2,1D

≥1

SRG8

R

M2

C1/2

9

1

2

3

4

5

10

11

12

14

13

2,1D

Fig. 2. IEC logic symbol

aaa-008818

8-BIT PARALLEL/SERIAL-IN/

SERIAL-OUT SHIFT REGISTER

DS

9

1

6

15

2

Q7

D0

13

3

D1

4

D2

5

D3

10

D4

11

D5

12

D6

14

D7

MR

CP

CE

PE

7

Fig. 3. Functional diagram

74HC_HCT166

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Product data sheet

Rev. 5 — 9 August 2021

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