April 2008 Rev 4 1/17
17
M74HC4051
Single 8-channel
analog multiplexer/demultiplexer
Features
Low power dissipation:
–I
CC
= 4 μA(max) at T
A
=2C
Logic level translation to enable 5 V logic signal
to communicate with ± 5 V analog signal
Low ON resistance:
70 Ω typ (V
CC
- V
EE
= 4.5 V)
50 Ω typ (V
CC
- V
EE
= 9 V)
Wide analog input voltage range : ± 6V
Fast switching:
t
pd
= 15 ns (typ) at T
A
= 25 °C
Low crosstalk between switches
High ON/OFF output voltage ratio
Wide operating supply voltage range
(V
CC
- V
EE
) = 2 to 12 V
Low sine wave distortion:
0.02% at V
CC
- V
EE
= 9 V
High noise immunity:
V
NIH
= V
NIL
= 28 % V
CC
(min)
Pin and function compatible with
74 series 4051
Description
The M74HC4051 is a single 8-channel analog
multiplexer/demultiplexer fabricated with silicon
gate C
2
MOS technology, pin-to-pin compatible
with the equivalent metal gate CMOS4000B
series. It contains 8 bidirectional and digitally
controlled analog switches.
A built-in level shifting is included to allow an input
range up to ± 6 V (peak) for an analog signal with
digital control signal of 0 to 6 V.
The V
EE
supply pin is provided for analog input
signals. It has an inhibit (INH) input terminal to
disable all the switches when is at high level. For
operation as a digital multiplexer/demultiplexer,
V
EE
is connected to GND.
A, B and C control inputs select one channel out
of eight. All inputs are equipped with protection
circuits against static discharge and transient
excess voltage.
PDIP-16
SOP-16
TSSOP-16
Table 1. Device summary
Order code Package Packaging
M74HC4051RM13TR SOP-16 Tape and reel
M74HC4051TTR TSSOP-16 Tape and reel
www.st.com
Pin connection and IEC logic symbols M74HC4051
2/17
1 Pin connection and IEC logic symbols
Figure 1. Pin connection
Figure 2. IEC logic symbols
1.1 Pin description
Table 2. Pin description
Pin number Symbol Name and function
3
COM
OUT/IN
Common output/input
6 INH Inhibit input
7V
EE
Negative supply voltage
11, 10, 9 A, B, C Select inputs
13, 14, 15, 12, 1, 5, 2, 4 0 to 7 Independent input/outputs
8 GND Ground (0 V)
16 V
CC
Positive supply voltage
M74HC4051 Pin connection and IEC logic symbols
3/17
Figure 3. Control input equivalent circuit
Figure 4. I/O equivalent circuit
x: Don’t care
Table 3. Truth table
Input state
ON channel
INHCBA
LLLL 0
LLLH 1
LLHL 2
LLHH 3
LHLL 4
LHLH 5
LHHL 6
LHHH 7
H X X X NONE

M74HC4051RM13TR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Multiplexer Switch ICs Ana Multi/Demultiplx
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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