MC54/74HC4051 MC74HC4052 MC54/74HC4053

Analog Multiplexers/

Demultiplexers

High–Performance Silicon–Gate CMOS

The MC54/74HC4051, MC74HC4052 and MC54/74HC4053 utilize sili-

con–gate CMOS technology to achieve fast propagation delays, low ON

resistances, and low OFF leakage currents. These analog multiplexers/

demultiplexers control analog voltages that may vary across the complete

The HC4051, HC4052 and HC4053 are identical in pinout to the

metal–gate MC14051B, MC14052B and MC14053B. The Channel–Select

inputs determine which one of the Analog Inputs/Outputs is to be connected,

by means of an analog switch, to the Common Output/Input. When the

Enable pin is HIGH, all analog switches are turned off.

The Channel–Select and Enable inputs are compatible with standard

CMOS outputs; with pullup resistors they are compatible with LSTTL

outputs.

switches.

For multiplexers/demultiplexers with channel–select latches, see

HC4351, HC4352 and HC4353.

• Fast Switching and Propagation Speeds

• Low Crosstalk Between Switches

• Diode Protection on All Inputs/Outputs

• Improved Linearity and Lower ON Resistance Than Metal–Gate

Counterparts

• Low Noise

• In Compliance With the Requirements of JEDEC Standard No. 7A

• Chip Complexity: HC4051 — 184 FETs or 46 Equivalent Gates

HC4052 — 168 FETs or 42 Equivalent Gates

HC4053 — 156 FETs or 39 Equivalent Gates

LOGIC DIAGRAM

MC54/74HC4051

Single–Pole, 8–Position Plus Common Off

X0

13

X1

14

X2

15

X3

12

X4

1

X5

5

X6

2

X7

4

A

11

B

10

C

9

ENABLE

6

MULTIPLEXER/

DEMULTIPLEXER

X

3

ANALOG

INPUTS/

CHANNEL

INPUTS

PIN 8 = GND

COMMON

OUTPUT/

INPUT

15

16

14

13

12

11

10

2

1

34567

9

8

X2

X1

X0

X3

A

B

C

X4

X6

X

X7

Pinout: MC54/74HC4051 (Top View)

OUTPUTS

SELECT

L

L

L

L

H

H

H

H

X

L

L

H

H

L

L

H

H

X

L

H

L

H

L

H

L

H

X

MC54/74HC4051

MC74HC4052

MC54/74HC4053

FUNCTION TABLE – MC54/74HC4051

Control Inputs

ON Channels

Enable

Select

CB

A

X0

X1

X2

X3

X4

X5

X6

X7

NONE

L

L

L

L

L

L

L

L

H

X = Don’t Care

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ORDERING INFORMATION

MC54HCXXXXJ

MC74HCXXXXN

MC74HCXXXXD

MC74HCXXXXDW

MC74HCXXXXDT

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