Philips HEF4051BU, HEF4051BT, HEF4051BPB, HEF4051BP, HEF4051BDB Datasheet

DATA SH EET

Product specification

File under Integrated Circuits, IC04

January 1995

INTEGRATED CIRCUITS

HEF4051B

MSI

8-channel analogue

multiplexer/demultiplexer

For a complete data sheet, please also download:

•The IC04 LOCMOS HE4000B Logic

Family Specifications HEF, HEC

•The IC04 LOCMOS HE4000B Logic

Package Outlines/Information HEF, HEC

January 1995 2

Philips Semiconductors Product specification

8-channel analogue multiplexer/demultiplexer

HEF4051B

MSI

DESCRIPTION

The HEF4051B is an 8-channel

analogue multiplexer/demultiplexer

with three address inputs (A

0

to A

2

),

an active LOW enable input (E), eight

independent inputs/outputs (Y

0

to Y

7

)

and a common input/output (Z).

The device contains eight

bidirectional analogue switches, each

with one side connected to an

independent input/output (Y

0

to Y

7

)

and the other side connected to a

common input/output (Z).

With

E LOW, one of the eight

switches is selected (low impedance

ON-state) by A

0

to A

2

. With E HIGH,

all switches are in the high impedance

OFF-state, independent of A

0

to A

2

.

V

DD

and V

SS

are the supply voltage

connections for the digital control

inputs (A

0

to A

2

, and E).

The V

DD

to V

SS

range is 3 to 15 V.

The analogue inputs/outputs (Y

0

to

Y

7

, and Z) can swing between V

DD

as

a positive limit and V

EE

as a negative

limit. V

DD

−V

EE

may not exceed 15 V.

For operation as a digital

multiplexer/demultiplexer, V

EE

is

connected to V

SS

(typically ground).

Fig.1 Functional diagram.

PINNING

FAMILY DATA, I

DD

LIMITS category MSI

See Family Specifications.

HEF4051BP(N): 16-lead DIL; plastic

(SOT38-1)

HEF4051BD(F): 16-lead DIL; ceramic

(cerdip)

(SOT74)

HEF4051BT(D): 16-lead SO; plastic

(SOT109-1)

( ): Package Designator North America

Y

0

to Y

7

independent inputs/outputs

A

0

to A

2

address inputs

E enable input (active LOW)

Z common input/output

Fig.2 Pinning diagram.

January 1995 3

Philips Semiconductors Product specification

8-channel analogue multiplexer/demultiplexer

HEF4051B

MSI

FUNCTION TABLE

Notes

1. H = HIGH state (the more positive voltage)

L = LOW state (the less positive voltage)

X = state is immaterial

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

Note

1. To avoid drawing V

DD

current out of terminal Z, when switch current flows into terminals Y, the voltage drop across

the bidirectional switch must not exceed 0,4 V. If the switch current flows into terminal Z, no V

DD

current will flow out

of terminals Y, in this case there is no limit for the voltage drop across the switch, but the voltages at Y and Z may

not exceed V

DD

or V

EE

.

INPUTS CHANNEL

ON

EA

2

A

1

A

0

LLLL Y

0

−Z

LLLH Y

1

−Z

LLHL Y

2

−Z

LLHH Y

3

−Z

LHLL Y

4

−Z

LHLH Y

5

−Z

LHHL Y

6

−Z

LHHH Y

7

−Z

H X X X none

Supply voltage (with reference to V

DD

)V

EE

−18 to + 0,5 V

Fig.3 Schematic diagram (one switch).