Datasheet M74HC4851TTR, M74HC4851RM13TR, M74HC4851M1R Datasheet (SGS Thomson Microelectronics)

SINGLE 8 CHANNEL ANALOG MUX/DEMUX
WITH INJECTION CURRENT PROTECTION

■ LOW POWER DISSIPATION:

I

=2µA(MAX.) at TA=25°C

CC

■ INJECTION CURRENT PROTECTION:

V

<1mV at VCC=5V IIN≤1mA RS≤3.9KΩ

∆OUT

■ "ON"RESISTANCEatT

215Ω TYP. (V
150Ω TYP. (V
160Ω TYP. (V

■ FASTSWITCHING:

t

=8.6ns(TYP.)atTA=25°C, VCC=4.5V

pd

■ WIDE OPERATING SUPPLY VOLTAGE

RANGE: V

■ HIGH NO ISE IMMUNITY:

V

NIH=VNIL

■ PIN AND FUNCTION COMPATIBLE WITH

=3.0V)

CC

=4.5V)

CC

=6V)

CC

=2VTO6V

CC

=28%VCC(MIN.)

SERIES 4051, 4851

■ LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

■ ESD PERFORMANCE:

HBM > 2000V (JESD22-A114B);
MM > 200V

DESCRIPTION

The M74HC4851 is a s ingle eight-channel analog
MULTIPLEXER/DEMULTIPLEXER fabricated
with silicon gate C

2

MOS technology.
It is pin to pin compatible with the equivalent to
standard HC4051 and MC14051, but feature
injection c urrent effect control. This make this
device expecially suited for usage in automotive
applications where voltages in excess of normal

=25°C:

A

M74HC4851

TSSOPSOP

ORDER CODES

PACKAGE TUBE T & R

SOP M74HC4851M1R M74HC4851RM13TR

TSSOP M74HC4851TTR

logic voltage are c ommon. The injection current
effect control allows signals at disabled input
channels to exceed the supply voltage range or go
down ground without affe cting the signal of the
enabled analog channel. This eliminated the need
for external diode-resistor networks typically esed
to keep the analog channel signals within the
supply voltage range. This a nalog switch is
bidirectional and digitally controlled. It have three
binary con trol inputs A, B, abd C to sel ect 1 of 8 to
be turned on, an d c onnected to the outpu t, and a
INH input to disable all ch annel.
All inputs and outputs are equipped with
protection circui ts against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.

PIN CONNECTION AND IEC LOGIC SYMB OLS

1/11September 2002

M74HC4851

CONTROL INPUT EQUIVALENT CIRCUIT

I/O EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

3COM

OUT/IN
6 INH INHIBIT Input
7NC

11, 10, 9 A, B, C Select Inputs

13, 14, 15,

12, 1,5,2,4

8 GND Ground (0V)

16 V

0 to 7 Independent Input/Out-

CC

Common Output/Input

Not Connected

puts

Positive Supply Voltage

TRUTH T ABLE

INPUT STATE

INH C B A

LLLL 0
LLLH 1
LLHL 2
LLHH 3
LHLL 4
LHLH 5
LHHL 6
LHHH 7
H X X X NONE

X: Don’t care

ON CHANNEL

FUNCTIONAL DIAGRAM

2/11

M74HC4851

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

CK

I

IOK

I

CC

P

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied

(*) Power difssipation at 65

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V
V
V

V
T

t

r,tf

1) For voltage drops across switch greater than 1.2V (switch on), excessive Vcc current may drawn; i.e., the current out of the switch may
containbothVCCandswitchinputcomponents.Thereliabilityoft hedevicewillbeunaffectedunlesstheMaximumRatingsareexceeded.

from 30% to 70% VCC of channel Selected or Enable Inputs

2) V

IN

Supply Voltage

CC

Control Input Voltage -0.5 to VCC+ 0.5

IN

Switch I/O Voltage -0.5 to VCC+ 0.5

I/O

Control Input Diode Current
I/O Diode Current
DC VCCor Ground Current
Power Dissipation SOP 500(*) mW

D

-0.5 to +7 V

± 25 mA
± 25 mA
± 50 mA

TSSOP 450(*) mW

Storage Temperature

stg

Lead Temperature (10 sec)

L

-65 to +150 °C
300 °C

°C. Derating from 65°Cto125°C: SO Package -7mW/°C; TSSOPPackage -6.1mW/°C

Supply Voltage

CC

Input Output Voltage 0 to V

I/O

Static or Dynamic Voltage Across Switch (note1) 0 to 1.2

I/O

Control Input Voltage 0 to V

IN

Operating Temperature

op

Input Rise and Fall Time (note2)
(Channel Select or Enable Inputs only)

VCC=2.0V

= 3.0.V

V

CC

=3.3V

V

CC

=4.5V

V

CC

=6.0V

V

CC

2to6 V

CC

CC

-55 to 125 °C
0to1000

0 to 800
0 to 700
0 to 500
0 to 400

V
V

V
V
V

ns

3/11

M74HC4851

DC S PEC IFICATIONS

Symbol Parameter

V

V

R

∆R

I

I

High Level Input

IHC

Voltage

Low Level Input

ILC

Voltage

ON Resistance

ON

Difference of ON

ON

Resistance
between switches

Input/Output

OFF

Leakage Current
(SWITCH OFF)
(Any Channel)

Input/Output

OFF

Leakage Current
(SWITCH OFF)
(Common
Channel)

Switch Input

I

ON

Leakage Current
(SWITCH ON,
OUTPUT OPEN)

I

Control Input

IN

Current

I

Quiescent Supply

CC

Current

Test Condition Value

V

(V)

CC

T

A

Min. Typ. Max. Min. Max. Min. Max.

up to 85°C up to 125°C

= 25°C

2.0 1.5 1.5 1.5

3.0 2.1 2.1 2.1

3.0 2.3 2.3 2.3

4.5 3.15 3.15 3.15

6.0 4.2 4.2 4.2

2.0 0.5 0.5 0.5

3.0 0.9 0.9 0.9

3.3 1.0 1.0 1.0

4.5 1.35 1.35 1.35

6.0 1.8 1.8 1.8
IS=2mA

2.0

3.0

3.3 210 270 305 345
I

≤2mA

S

4.5 160 210 240 270

V

IN=VIHC

V

ILC

VIS=VCCto

GND

or

500 650 670 700
215 280 320 360

6.0 150 195 220 250

=2mA

I

2.0

S

3.0

3.3 2 8 12 16
I

≤2mA

S

4.5 2 8 12 16

V

IN=VIHC

VIS=VCC/2

or

V

ILC

410 15 20
28 12 16

6.0 3 9 13 18

6.0 V

IN=VCC

or GND

±

0.1

± 0.5 ± 1.0

6.0 ± 0.2 ± 2 ± 4

6.0 V

IN=VCC

or GND

±

0.1

± 0.5 ± 1

6.0 VIN=VCCor GND ± 0.1 ± 0.1 ± 1

6.0 VIN=VCCor GND

V

IN(analog)

= GND

22040µA

Unit

V

V

Ω

Ω

µA

µA

µA

µA

4/11

M74HC4851

AC ELECT RICAL CHARACTERISTICS (CL= 50 pF, Input tr=tf=6ns)

Test Condition Value

= 25°C

Symbol Parameter

t

PHL,tPLH

Propagation Delay
Time,Analog Input
to Analog Output

V

CC

(V)

TEST CIRCUIT 1

2.0 19.5 25 29 32

3.0 12 15.5 17.5 19.5

3.3 11 14.5 16.5 18.5

T

A

Min. Typ. Max. Min. Max. Min. Max.

4.5 8.6 11.5 12.5 13.5

6.0 8 10 11 12

t

PHL,tPLH

Propagation Delay
Time
Channel-Select to
Analog Output

2.0 23 30 35 40

3.0 13.5 17.5 20 23

3.3 12.5 16.5 19 22

4.5 10 13 15 17

6.0 9.5 12.5 14.5 16.5

t

PHZtPZH

t

PLZ,tPZL

Enable Disable
Time, Enable or
Channel-Select to
Analog Output

2.0 95 105 115

3.0 90 100 110

3.3 85 95 105

4.5 80 90 100

6.0 78 80 80

Input Capacitance

C

IN

(Digital Pins)
Input Capacitance

C

IN

(Switches Off, Any
Single Analog

3.5 10 10 10

6.7 15 15 15

Pins)
Input Capacitance

C

IN

(Switches Off, Any
Common Analog

22 40 40 40

Pins)

C

(*)CPDis 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. I

Power Dissipation

PD

Capacitance (*)

3.3 24 pF

5.0 28

up to 85°C up to 125°C

CC(opr)=CPDxVCCxfIN+ICC

Unit

ns

ns

ns

pF

pF

pF

/8

INJECTION CURRENT COUPLING SPECIFICATION (TA= -55°C to +125°C)

Test Condition Value

Symbol Parameter

V

Shift of Output

∆OUT

VoltageofEnabled
Analog Channel

1) Typical values are measured at TA=25°C e they are calculate as differance from Vout without Injection Current and Vout with Injection

Current.

= total current injected into any other disabled channels, one at time.

I

IN

V

CC

(V)

3.3

5.0 0.100 1.0

3.3

5.0 0.067 5.0

3.3

5.0 0.110 2.0

3.3

5.0 0.024 20

TEST CIRCUIT 2 Typ.(1) Max.

≤ 1mA, RS ≤ 3.9KΩ

I

IN

I

≤ 10mA, RS ≤ 3.9KΩ

IN

I

≤ 1mA, RS ≤ 20KΩ

IN

I

≤ 10mA, RS ≤ 20KΩ

IN

0.050 1.0 mV

0.345 5.0

0.050 2.0

0.050 20

Unit

5/11

M74HC4851

TEST CIRCUIT 1

TEST SWITCH

t

PLH,tPHL

t

PZL,tPLZ

t

PZH,tPHZ

CL=50pF or equivalent (includes jig and probe capacitance)
RL=R1=10KΩ or equivalent
RT=Z

of pulse generator (typically 50Ω)

OUT

Open

V

CC

GND

TEST CIRCUIT 2

6/11

WAVEFORM: P RO PAGATION DELAY (f=1MHz; 50% duty cycle)

M74HC4851

WAVEFORM: P RO PAGATION DELAY (f=1MHz; 50% duty cycle)

7/11

M74HC4851

WAVEFORM: P RO PAGATION DELAY (f=1MHz; 50% duty cycle)

CHANNEL RESISTANCE (R

ON)

ICC(Opr.)

8/11

SO-16 MECHANICAL DATA

M74HC4851

DIM.

A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 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 0.62 0.024
S ˚ (max.)

MIN. TYP MAX. MIN. TYP. MAX.

mm. inch

8

PO13H

9/11

M74HC4851

TSSOP16 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.004 0.006

A2 0.8 1 1.05 0.031 0.039 0.041

b 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

e 0.65 BSC 0.0256 BSC

K0˚ 8˚0˚ 8˚

L 0.45 0.60 0.75 0.018 0.024 0.030

A2

A

A1

b

e

c

K

L

E

D

E1

PIN 1 IDENTIFICATION

10/11

1

0080338D

M74HC4851

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11/11