M74HC4051
SINGLE 8-CHANNEL
ANALOG MULTIPLEXER/DEMULTIPLEXER
■

■

■

■

■

■
■
■

■

■

■

LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
LOGIC LEVEL TRANSLATION TO ENABLE
5V LOGIC SIGNAL TO COMMUNICATE
WITH ±5V ANALOG SIGNAL
LOW "ON" RESISTANCE:
70Ω TYP. (VCC - VEE = 4.5V)
50Ω TYP. (VCC - VEE = 9V)
WIDE ANALOG INPUT VOLTAGE RANGE:
±6V
FAST SWITCHING:
tpd = 15ns (TYP.) at TA = 25 °C
LOW CROSSTALK BETWEEN SWITCHES
HIGH ON/OFF OUTPUT VOLTAGE RATIO
WIDE OPERATING SUPPLY VOLTAGE
RANGE (VCC - VEE) = 2V TO 12V
LOW SINE WAVE DISTORTION:
0.02% at VCC - VEE = 9V
HIGH NOISE IMMUNITY:
VNIH = V NIL = 28 % VCC (MIN.)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 4051

DESCRIPTION
The M74HC4051 is a single eight-channel analog
MULTIPLEXER/DEMULTIPLEXER
fabricated
with silicon gate C2MOS technology and it is pin
to pin compatible with the equivalent metal gate
CMOS4000B series.

DIP

SOP

TSSOP

ORDER CODES
PACKAGE

TUBE

DIP
SOP
TSSOP

M74HC4051B1R
M74HC4051M1R

T&R
M74HC4051RM13TR
M74HC4051TTR

It contains 8 bidirectional and digitally controlled
analog switches.
A built-in level shifting is included to allow an input
range up to ±6V (peak) for an analog signal with
digital control signal of 0 to 6V.
VEE 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,
VEE 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.

PIN CONNECTION AND IEC LOGIC SYMBOLS

July 2001

1/12

M74HC4051
CONTROL INPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION
PIN No

SYMBOL

3

COM
OUT/IN
INH
VEE

Common Output/Input

A, B, C
0 to 7

Select Inputs
Independent Input/Outputs
Ground (0V)

6
7
11, 10, 9
13, 14, 15,
12, 1, 5, 2, 4
8
16

GND
VCC

NAME AND FUNCTION

INHIBIT Input
Negative Supply Voltage

Positive Supply Voltage

TRUTH TABLE
I/O EQUIVALENT CIRCUIT
INPUT STATE
ON CHANNEL
INH

C

B

A

L
L
L
L
L
L
L
L
H

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

X: Don’t care

FUNCTIONAL DIAGRAM

2/12

0
1
2
3
4
5
6
7
NONE

M74HC4051
ABSOLUTE MAXIMUM RATINGS
Symbol

Parameter

Value

Unit

VCC

Supply Voltage

-0.5 to +7

V

VCC - VEE

Supply Voltage

-0.5 to +13

V

VI

Control Input Voltage

-0.5 to VCC + 0.5

V

VEE -0.5 to VCC + 0.5

V

Control Input Diode Current

± 20

mA

I/O Diode Current

± 20

mA

Switch Through Current

± 25

mA

VI/O

Switch I/O Voltage

ICK
IIOK
IT

ICC or IGND DC VCC or Ground Current
PD
Power Dissipation
Tstg

Storage Temperature

TL

Lead Temperature (10 sec)

± 50

mA

500(*)

mW

-65 to +150

°C

300

°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C

RECOMMENDED OPERATING CONDITIONS
Symbol

Parameter

Value

Unit

VCC

Supply Voltage

2 to 6

V

VEE

Supply Voltage

-6 to 0

V

VCC - VEE Supply Voltage

2 to 12

V

VI

Input Voltage

VI/O

I/O Voltage

Top

Operating Temperature
Input Rise and Fall Time

tr, tf

0 to VCC

V

VEE to VCC

V

-55 to 125

°C

VCC = 2.0V

0 to 1000

VCC = 4.5V

0 to 500

VCC = 6.0V

0 to 400

ns

3/12

M74HC4051
DC SPECIFICATIONS
Test Condition
Symbol

VIHC

VILC

RON

∆RON

IOFF

IIZ

II
ICC

4/12

Parameter

High Level Input
Voltage
Low Level Input
Voltage
ON Resistance

Difference of ON
Resistance
between switches
Input/Output
Leakage Current
(SWITCH OFF)
Switch Input
Leakage Current
(SWITCH ON,
OUTPUT OPEN)
Input Leakage
Current
Quiescent Supply
Current

VCC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
4.5
4.5
6.0
2.0
4.5
4.5
6.0
4.5
4.5
6.0
6.0
6.0

Value
TA = 25°C

VEE
(V)

Min.

-40 to 85°C -55 to 125°C

Typ. Max. Min. Max.

1.5
3.15
4.2

GND
-4.5
-6.0
GND
GND
-4.5
-6.0
GND
-4.5
-6.0
GND

1.5
3.15
4.2

Min.

Max.

1.5
3.15
4.2

V

0.5
1.35
1.8
180
120
100

0.5
1.35
1.8
225
150
125

0.5
1.35
1.8
270
180
150

150
100
80
30
12
10
±0.06
± 0.1

190
125
100
35
15
12
± 0.6
±1

230
150
120
45
18
15
± 1.2
±2

VOS = VCC or
GND
VI = VIHC or VILC

±0.06
± 0.1

± 0.6
±1

± 1.2
±2

VI = VIHC or VILC
VI/O = VCC to VEE
II/O ≤ 2mA
VI = VIHC or VILC
VI/O = VCC or VEE
II/O ≤ 2mA
VI = VIHC or VILC
VI/O = VCC or VEE
II/O ≤ 2mA

VOS = VCC or
GND
-6.0 VIS = GND or VCC
VI = VILC or VIHC

85
55
50
150
70
50
45
10
5
5

Unit

V

Ω

6.0

GND

6.0

-6.0

6.0

GND VI = VCC or GND

± 0.1

± 0.1

±1

6.0
6.0

GND
VI = VCC or GND
-6.0

4
8

40
80

80
160

Ω

µA

µA
µA
µA

M74HC4051
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol

ΦI/O

Parameter

Phase Difference
Between Input and
Output

tPZL
tPZH

Output Enable
Time

tPLZ
tPHZ

Output Disable
Time

VCC
(V)

VEE
(V)

2.0
4.5
6.0
4.5
2.0
4.5
6.0
4.5
2.0
4.5
6.0
4.5

GND
GND
GND
-4.5
GND
GND
GND
-4.5
GND
GND
GND
-4.5

Value
TA = 25°C
Min.

Typ. Max. Min. Max.
25
6
5
4
64
18
15
18
100
33
28
29

RL = 1KΩ

RL = 1KΩ

-40 to 85°C -55 to 125°C
Min.

Unit

Max.

60
12
10

75
15
13

90
18
15

225
45
38

280
56
48

340
68
58

250
50
43

315
63
54

375
70
64

ns

ns

ns

CAPACITIVE CHARACTERISTICS
Test Condition
Symbol

Parameter

VCC
(V)

VEE
(V)

Value
TA = 25°C
Min.

-40 to 85°C -55 to 125°C

Typ. Max. Min. Max.

Min.

Unit

Max.

CIN

Input Capacitance

5.0

5

10

10

10

pF

CI/O

Common Terminal
Capacitance
Switch Terminal
Capacitance
Feed Through
Capacitance
Power Dissipation
Capacitance
(note 1)

5.0

-5.0

36

70

70

70

pF

5.0

-5.0

7

15

15

15

pF

5.0

-5.0

0.95

2

2

2

pF

5.0

GND

70

CI/O
CIOS
CPD

pF

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC

5/12

M74HC4051
ANALOG SWITCH CHARACTERISTICS (GND = 0V; TA = 25°C)
Symbol

Parameter

Sine Wave
Distortion

Test Condition
VCC
(V)

VEE
(V)

VIN
(Vp-p)

2.25
4.5
6.0
2.25
4.5
6.0

-2.25
-4.5
-6.0
-2.25
-4.5
-6.0

4
8
11

Value Unit
Typ.

fIN = 1 KHz RL = 10 KΩ CL = 50 pF
Adjust fIN voltage to obtain 0 dBm at VOS.
Increase fIN Frequency until dB meter reads -3dB
RL = 50Ω, CL = 10 pF, fIN = 1KHz sine wave

0.025
0.020
%
0.018
120
190 MHz
200

fMAX

Frequency
Response
(Switch ON) (*)

fMAX

Frequency
Response
(Switch ON) (**)

2.25
4.5
6.0

-2.25
-4.5
-6.0

Adjust fIN voltage to obtain 0 dBm at VOS.
Increase fIN Frequency until dB meter reads -3dB
RL = 50Ω, CL = 10 pF, fIN = 1KHz sine wave

45
70
85

MHz

Feed through
Attenuation
(Switch OFF)

2.25
4.5
6.0

-2.25
-4.5
-6.0

VIN is centered at (VCC - VEE)/2

-50
-50
-50

dB

Crosstalk (Control
Input to Signal
Output)

2.25
4.5
6.0

-2.25
-4.5
-6.0

60
140
200

mV

Crosstalk
(between any two
Switches)

2.25
4.5
6.0

-2.25
-4.5
-6.0

-50
-50
-50

dB

Adjust input for 0 dBm
RL = 600Ω, CL = 50 pF, fIN = 1KHz sine wave
Adjust RL at set up so that IS = 0A.
RL = 600Ω, CL = 50 pF, fIN = 1KHz square wave
Adjust VIN to obtain 0dBm at input
RL = 600Ω, CL = 50 pF, fIN = 1KHz sine wave

(*) Input COMMON Terminal, and measured at SWITCH Terminal
(**) Input SWITCH Terminal, and measured at common Terminal
NOTE: These characteristics are determined by the design of the device.

6/12

M74HC4051
SWITCHING CARACTERISTICS TEST CIRCUIT
CROSSTALK (control to output)

BANDWIDTH AND FEEDTHROUGH ATTENUATION

CROSSTALK BETWEEN ANY TWO SWITCHES

7/12

M74HC4051
SWITCHING CHARACTERISTICS WAVEFORM

CHANNEL RESISTANCE (RON)

8/12

ICC (Opr.)

M74HC4051

Plastic DIP-16 (0.25) MECHANICAL DATA
mm.

inch

DIM.
MIN.
a1

0.51

B

0.77

TYP

MAX.

MIN.

TYP.

MAX.

0.020
1.65

0.030

0.065

b

0.5

0.020

b1

0.25

0.010

D

20

0.787

E

8.5

0.335

e

2.54

0.100

e3

17.78

0.700

F

7.1

0.280

I

5.1

0.201

L
Z

3.3

0.130
1.27

0.050

P001C
9/12

M74HC4051

SO-16 MECHANICAL DATA
DIM.

mm.
MIN.

TYP

A
a1

inch
MAX.

MIN.

TYP.

1.75
0.1

0.068

0.2

a2

MAX.

0.003

0.007

1.65

0.064

b

0.35

0.46

0.013

0.018

b1

0.19

0.25

0.007

0.010

C

0.5

0.019

c1

45° (typ.)

D

9.8

10

0.385

0.393

E

5.8

6.2

0.228

0.244

e

1.27

0.050

e3

8.89

0.350

F

3.8

4.0

0.149

0.157

G

4.6

5.3

0.181

0.208

L

0.5

1.27

0.019

0.050

M
S

0.62

0.024
8° (max.)

PO13H
10/12

M74HC4051

TSSOP16 MECHANICAL DATA
mm.

inch

DIM.
MIN.

TYP

A

MAX.

MIN.

TYP.

MAX.

1.2

A1

0.05

A2

0.8

b

0.047

0.15

0.002

0.004

0.006

1.05

0.031

0.039

0.041

0.19

0.30

0.007

0.012

c

0.09

0.20

0.004

0.0089

D

4.9

5

5.1

0.193

0.197

0.201

E

6.2

6.4

6.6

0.244

0.252

0.260

E1

4.3

4.4

4.48

0.169

0.173

0.176

1

e

0.65 BSC

K

0°

L

0.45

A

0.60

0.0256 BSC
8°

0°

0.75

0.018

8°
0.024

0.030

A2
A1

b

e

K
c

L
E

D

E1

PIN 1 IDENTIFICATION

1
0080338D

11/12

M74HC4051

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
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