4051B Datasheet PDF - NXP

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4051B
NXP

Part Number 4051B
Description 8-channel analogue multiplexer/demultiplexer
Page 9 Pages


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INTEGRATED CIRCUITS
DATA SHEET
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
HEF4051B
MSI
8-channel analogue
multiplexer/demultiplexer
Product specification
File under Integrated Circuits, IC04
January 1995



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Philips Semiconductors
8-channel analogue multiplexer/demultiplexer
Product specification
HEF4051B
MSI
DESCRIPTION
The HEF4051B is an 8-channel
analogue multiplexer/demultiplexer
with three address inputs (A0 to A2),
an active LOW enable input (E), eight
independent inputs/outputs (Y0 to Y7)
and a common input/output (Z).
The device contains eight
bidirectional analogue switches, each
with one side connected to an
independent input/output (Y0 to Y7)
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 A0 to A2. With E HIGH,
all switches are in the high impedance
OFF-state, independent of A0 to A2.
VDD and VSS are the supply voltage
connections for the digital control
inputs (A0 to A2, and E).
The VDD to VSS range is 3 to 15 V.
The analogue inputs/outputs (Y0 to
Y7, and Z) can swing between VDD as
a positive limit and VEE as a negative
limit. VDDVEE may not exceed 15 V.
For operation as a digital
multiplexer/demultiplexer, VEE is
connected to VSS (typically ground).
Fig.1 Functional diagram.
January 1995
2
Fig.2 Pinning diagram.
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
PINNING
Y0 to Y7
A0 to A2
E
Z
independent inputs/outputs
address inputs
enable input (active LOW)
common input/output
FAMILY DATA, IDD LIMITS category MSI
See Family Specifications.



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Philips Semiconductors
8-channel analogue multiplexer/demultiplexer
Product specification
HEF4051B
MSI
Fig.3 Schematic diagram (one switch).
FUNCTION TABLE
INPUTS
CHANNEL
E A2 A1 A0
ON
L L LL
Y0Z
L L LH
Y1Z
L L HL
Y2Z
L L HH
Y3Z
L H LL
Y4Z
L H LH
Y5Z
L H HL
Y6Z
L H HH
Y7Z
H X XX
none
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)
Supply voltage (with reference to VDD)
VEE 18 to + 0,5 V
Note
1. To avoid drawing VDD 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 VDD 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 VDD or VEE.
January 1995
3



No Preview Available !

Philips Semiconductors
8-channel analogue multiplexer/demultiplexer
Product specification
HEF4051B
MSI
January 1995
Fig.4 Logic diagram.
4



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4051 8-CHANNEL ANALOG MULTIPLEXERS/DEMULTIPLEXERS 4051
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4051B pdf

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