Nexperia

74LVC257A

Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state

4. Functional diagram

mna865

1I0

1I1

2I0

2I1

3I0

3I1

4I0

4I1

S

4Y

3Y

2Y

1Y

1

15

4

7

9

12

2

3

5

6

11

10

14

13

OE

Fig. 1. Logic diagram

mna866

12

9

7

4

1

G1

15

EN

MUX

1

1

13

14

10

11

6

5

3

2

Fig. 2. IEC logic symbol

mna868

3-STATE

MULTI-

PLEXER

OUTPUTS

SELECTOR

1Y

2Y

3Y

4Y 12

9

7

4

1I0

1I1

2I0

2I1

3I0

3I1

4I0

4I1

S

OE

13

1

15

14

10

11

6

5

3

2

Fig. 3. Functional diagram

1I0

OE

S

1I1

2I0

2I1

3I0

3I1

4I0

4I1

4Y

3Y

2Y

1Y

mna867

Fig. 4. Logic diagram

74LVC257A

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Product data sheet

Rev. 8 — 31 August 2021

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