Nexperia

74HC299

8-bit universal shift register; 3-state

4. Functional diagram

001aai460

INPUT/3-STATE OUTPUT CIRCUITRY

8-BIT SHIFT REGISTER

I/O0

CP

Q0

MR

2

8

9

3

12

11

DSR

7

I/O1

13

I/O2

6

I/O3

14

I/O4

5

15

I/O5

1

19

I/O6

4

I/O7

16

Q7

S0

S1

DSL

17

18

OE1

OE2

Fig. 1. Functional diagram

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MR

OE

2

9

3

16

4

17

8

15

5

14

6

13

7

18

11

19

1

I/O7

I/O6

Q7

Q0

I/O5

I/O4

I/O3

I/O2

I/O1

I/O0

CP

S0

S1

DSR

DSL

12

Fig. 2. Logic symbol

9

2

3

R

SRG8

3EN5

0

1

19

1

C4/1 /2

M 03

12

11

8

1, 4D

3, 4D

6, 5

18

2, 4D

7

Z6

17

Z7

6

14

5

15

4

7, 5

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&

16

3, 4D

3, 4D

5

13

Fig. 3. IEC logic symbol

74HC299

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Product data sheet

Rev. 6 — 11 May 2021

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