STMICROELECTRONICS M74HC4851M1R

M74HC4851
SINGLE 8 CHANNEL ANALOG MUX/DEMUX
WITH INJECTION CURRENT PROTECTION
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LOW POWER DISSIPATION:
ICC = 2µA(MAX.) at TA=25°C
INJECTION CURRENT PROTECTION:
V∆OUT<1mV at VCC=5V IIN≤1mA R S≤3.9KΩ
"ON" RESISTANCE at TA=25°C:
215Ω TYP. (VCC = 3.0V)
150Ω TYP. (VCC = 4.5V)
160Ω TYP. (VCC = 6V)
FAST SWITCHING:
tpd = 8.6ns (TYP.) at TA = 25 °C, VCC = 4.5V
WIDE OPERATING SUPPLY VOLTAGE
RANGE: VCC = 2V TO 6V
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
PIN AND FUNCTION COMPATIBLE WITH
SERIES 4051, 4851
LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (JESD22-A114B);
MM > 200V
DESCRIPTION
The M74HC4851 is a single eight-channel analog
MULTIPLEXER/DEMULTIPLEXER
fabricated
with silicon gate C2MOS technology.
It is pin to pin compatible with the equivalent to
standard HC4051 and MC14051, but feature
injection current effect control. This make this
device expecially suited for usage in automotive
applications where voltages in excess of normal
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
T&R
SOP
TSSOP
M74HC4851M1R
M74HC4851RM13TR
M74HC4851TTR
logic voltage are common. The injection current
effect control allows signals at disabled input
channels to exceed the supply voltage range or go
down ground without affecting 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 analog switch is
bidirectional and digitally controlled. It have three
binary control inputs A, B, abd C to select 1 of 8 to
be turned on, and connected to the output, and a
INH input to disable all channel.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
September 2002
1/11
M74HC4851
CONTROL INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
3
COM
OUT/IN
INH
NC
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
Not Connected
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
2/11
0
1
2
3
4
5
6
7
NONE
M74HC4851
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
VIN
Control Input Voltage
VI/O
Switch I/O Voltage
ICK
Control Input Diode Current
IIOK
I/O Diode Current
± 25
mA
ICC
DC VCC or Ground Current
± 50
mA
PD
Power Dissipation
500(*)
450(*)
mW
mW
Tstg
Storage Temperature
-65 to +150
°C
TL
Lead Temperature (10 sec)
300
°C
SOP
TSSOP
-0.5 to +7
V
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
V
V
± 25
mA
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 °C. Derating from 65°C to 125°C: SO Package -7mW/°C; TSSOP Package -6.1mW/°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
2 to 6
V
VI/O
Input Output Voltage
0 to VCC
V
VI/O
Static or Dynamic Voltage Across Switch (note1)
0 to 1.2
V
VIN
Control Input Voltage
Top
Operating Temperature
tr, tf
Input Rise and Fall Time (note2)
VCC = 2.0V
0 to 1000
(Channel Select or Enable Inputs only)
VCC = 3.0.V
0 to 800
VCC = 3.3V
0 to 700
VCC = 4.5V
0 to 500
VCC = 6.0V
0 to 400
0 to VCC
V
-55 to 125
°C
ns
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
containbothVCCandswitchinput components.Thereliabilityofthedevicewill beunaffectedunlesstheMaximumRatings areexceeded.
2) VIN from 30% to 70% VCC of channel Selected or Enable Inputs
3/11
M74HC4851
DC SPECIFICATIONS
Test Condition
Symbol
VIHC
VILC
RON
∆RON
IOFF
IOFF
ION
IIN
ICC
4/11
Parameter
High Level Input
Voltage
Low Level Input
Voltage
ON Resistance
Difference of ON
Resistance
between switches
Input/Output
Leakage Current
(SWITCH OFF)
(Any Channel)
Input/Output
Leakage Current
(SWITCH OFF)
(Common
Channel)
Switch Input
Leakage Current
(SWITCH ON,
OUTPUT OPEN)
Control Input
Current
Quiescent Supply
Current
TA = 25°C
VCC
(V)
Min.
2.0
3.0
3.0
4.5
6.0
2.0
3.0
3.3
4.5
6.0
2.0
up to 85°C
Typ. Max. Min. Max.
1.5
2.1
2.3
3.15
4.2
IS=2mA
3.0
3.3
4.5
6.0
IS≤2mA
2.0
IS=2mA
3.0
3.3
4.5
6.0
6.0
Value
IS≤2mA
VIN = VIHC or
VILC
VIS = VCC to
GND
VIN = VIHC or
VILC
VIS = VCC/2
VIN = VCC or GND
1.5
2.1
2.3
3.15
4.2
up to 125°C
Min.
Unit
Max.
1.5
2.1
2.3
3.15
4.2
V
0.5
0.9
1.0
1.35
1.8
0.5
0.9
1.0
1.35
1.8
0.5
0.9
1.0
1.35
1.8
500
650
670
700
215
210
160
150
280
270
210
195
320
305
240
220
360
345
270
250
4
10
15
20
2
2
2
3
8
8
8
9
±0.1
12
12
12
13
± 0.5
16
16
16
18
± 1.0
V
Ω
Ω
µA
± 0.2
6.0
±2
±4
µA
6.0
VIN = VCC or GND
±0.1
± 0.5
±1
µA
6.0
VIN = VCC or GND
± 0.1
± 0.1
±1
6.0
VIN = VCC or GND
VIN(analog)= GND
2
20
40
µA
µA
M74HC4851
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol
Parameter
tPHL,tPLH Propagation Delay
Time, Analog Input
to Analog Output
tPHL,tPLH Propagation Delay
Time
Channel-Select to
Analog Output
tPHZtPZH Enable Disable
Time, Enable or
tPLZ,tPZL
Channel-Select to
Analog Output
CIN
CIN
CIN
CPD
Input Capacitance
(Digital Pins)
Input Capacitance
(Switches Off, Any
Single Analog
Pins)
Input Capacitance
(Switches Off, Any
Common Analog
Pins)
Power Dissipation
Capacitance (*)
VCC
(V)
TEST CIRCUIT 1
Value
TA = 25°C
Min.
2.0
3.0
3.3
4.5
6.0
2.0
3.0
3.3
4.5
6.0
2.0
3.0
3.3
4.5
6.0
up to 85°C
Typ. Max. Min. Max.
19.5
12
11
8.6
8
23
13.5
12.5
10
9.5
3.5
up to 125°C
Min.
Unit
Max.
25
15.5
14.5
11.5
10
30
17.5
16.5
13
12.5
95
90
85
80
78
29
17.5
16.5
12.5
11
35
20
19
15
14.5
105
100
95
90
80
32
19.5
18.5
13.5
12
40
23
22
17
16.5
115
110
105
100
80
10
10
10
ns
ns
ns
pF
pF
6.7
15
15
15
pF
22
3.3
24
5.0
28
40
40
40
pF
(*) 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/8
INJECTION CURRENT COUPLING SPECIFICATION (TA= -55°C to +125°C)
Test Condition
Symbol
V∆OUT
Parameter
Shift of Output
Voltage of Enabled
Analog Channel
VCC
(V)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Value
Unit
TEST CIRCUIT 2
Typ.(1)
Max.
IIN ≤ 1mA, RS ≤ 3.9KΩ
0.050
0.100
0.345
0.067
0.050
0.110
0.050
0.024
1.0
1.0
5.0
5.0
2.0
2.0
20
20
IIN ≤ 10mA, RS ≤ 3.9KΩ
IIN ≤ 1mA, RS ≤ 20KΩ
IIN ≤ 10mA, RS ≤ 20KΩ
mV
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.
IIN = total current injected into any other disabled channels, one at time.
5/11
M74HC4851
TEST CIRCUIT 1
TEST
tPLH, tPHL
SWITCH
Open
tPZL, tPLZ
VCC
tPZH, tPHZ
GND
CL =50pF or equivalent (includes jig and probe capacitance)
RL = R1 = 10KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
TEST CIRCUIT 2
6/11
M74HC4851
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
7/11
M74HC4851
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
CHANNEL RESISTANCE (RON)
8/11
ICC (Opr.)
M74HC4851
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
E
5.8
10
0.385
6.2
0.228
0.393
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
9/11
M74HC4851
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
10/11
M74HC4851
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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