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MC74HC4851A,
MC74HC4852A
Analog Multiplexers/
Demultiplexers with
Injection Current Effect
Control
Automotive Customized
These devices are pin compatible to standard HC405x and
MC1405xB analog mux/demux devices, but feature injection current
effect control. This makes them especially suited for usage in
automotive applications where voltages in excess of normal logic
voltage are common.
The injection current effect control allows signals at disabled analog
input channels to exceed the supply voltage range without affecting
the signal of the enabled analog channel. This eliminates the need for
external diode/ resistor networks typically used to keep the analog
channel signals within the supply voltage range.
The devices utilize low power silicon gate CMOS technology. The
Channel Select and Enable inputs are compatible with standard CMOS
outputs.
Features
16
16
1
PDIP−16
N SUFFIX
CASE 648
MC74HC485xAN
AWLYYWWG
1
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MARKING
DIAGRAMS
16
16
1
SOIC−16
D SUFFIX
CASE 751B
1
HC485xAG
AWLYWW
16
16
1
SOIC−16 WIDE
DW SUFFIX
CASE 751G
1
HC4851A
AWLYWWG
•
•
•
•
•
•
Injection Current Cross−Coupling Less than 1mV/mA (See Figure 9)
Pin Compatible to HC405X and MC1405XB Devices
Power Supply Range (V
CC
− GND) = 2.0 to 6.0 V
In Compliance With the Requirements of JEDEC Standard No. 7A
Chip Complexity: 154 FETs or 36 Equivalent Gates
Pb−Free Packages are Available*
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
1
HC48
5xA
ALYWG
G
x
= 1 or 2
A
= Assembly Location
L, WL
= Wafer Lot
Y, YY
= Year
W, WW = Work Week
G
= Pb−Free Package
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2007
1
February, 2007 − Rev. 7
Publication Order Number:
MC74HC4851A/D
MC74HC4851A, MC74HC4852A
FUNCTION TABLE − MC74HC4851A
Control Inputs
X0
14
X1
ANALOG
INPUTS/
OUTPUTS
X2
12
X3
1
X4
5
X5
X6
4
X7
11
A
10
B
9
2
15
13
Enable
L
L
L
L
L
L
L
L
H
V
CC
16
X2
15
Select
C
B
A
L
L
L
L
H
H
H
H
X
X1
14
L
L
H
H
L
L
H
H
X
X0
13
L
H
L
H
L
H
L
H
X
X3
12
ON Channels
X0
X1
X2
X3
X4
X5
X6
X7
NONE
A
11
B
10
C
9
MULTIPLEXER/
DEMULTIPLEXER
3
X
COMMON
OUTPUT/
INPUT
CHANNEL
SELECT
INPUTS
C
6
ENABLE
PIN 16 = V
CC
PIN 8 = GND
Figure 1. MC74HC4851A Logic Diagram
Single−Pole, 8−Position Plus Common Off
1
X4
2
X6
3
X
4
X7
5
X5
6
7
Enable NC
8
GND
Figure 2. MC74HC4851A 16−Lead Pinout
(Top View)
FUNCTION TABLE − MC74HC4852A
Control Inputs
Enable
X0
12
14
B
L
L
H
H
X
Select
A
L
H
L
H
X
ON Channels
Y0
Y1
Y2
Y3
NONE
X0
X1
X2
X3
ANALOG
INPUTS/OUTPUTS
X1
15
X2
11
X3
Y0
Y1
Y2
Y3
A
B
1
5
2
4
10
9
6
X SWITCH
13
X
COMMON
OUTPUTS/INPUTS
L
L
L
L
H
X = Don’t Care
Y SWITCH
3
Y
V
CC
X2
15
X1
14
X
13
X0
12
X3
11
A
10
B
9
CHANNEL-SELECT
INPUTS
PIN 16 = V
CC
PIN 8 = GND
16
ENABLE
Figure 3. MC74HC4852A Logic Diagram
Double−Pole, 4−Position Plus Common Off
1
Y0
2
Y2
3
Y
4
Y3
5
Y1
6
7
Enable NC
8
GND
Figure 4. MC74HC4852A 16−Lead Pinout
(Top View)
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2
MC74HC4851A, MC74HC4852A
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
Î
ÎÎÎ Î
Î Î
Î
Î
ÎÎÎ
Î
Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
Î
ÎÎÎ
Î Î
Î
Î
ÎÎÎ
Î Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎ
Î Î
Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MAXIMUM RATINGS
Symbol
V
CC
V
in
I
Parameter
Value
Unit
V
V
Positive DC Supply Voltage
DC Input Voltage (Any Pin)
(Referenced to GND)
(Referenced to GND)
–0.5 to + 7.0
–0.5 to V
CC
+ 0.5
$25
750
500
450
DC Current, Into or Out of Any Pin
Power Dissipation in Still Air,
mA
P
D
Plastic DIP†
SOIC Package†
TSSOP Package†
mW
T
stg
T
L
Storage Temperature Range
–65 to + 150
260
°C
°C
Lead Temperature, 1 mm from Case for 10 Seconds
Plastic DIP, SOIC or TSSOP Package
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress
ratings only. Functional operation above the Recommended Operating Conditions is not implied.
Extended exposure to stresses above the Recommended Operating Conditions may affect device
reliability.
†Derating — Plastic DIP: – 10 mW/°C from 65° to 125°C
SOIC Package: – 7 mW/°C from 65° to 125°C
TSSOP Package: − 6.1 mW/°C from 65° to 125°C
For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor
High−Speed CMOS Data Book (DL129/D).
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high−impedance cir-
cuit. For proper operation, V
in
and
V
out
should be constrained to the
range GND
v
(V
in
or V
out
)
v
V
CC
.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or V
CC
).
Unused outputs must be left open.
ÎÎÎ Î Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
Î
Î Î
Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
ÎÎÎ Î Î
ÎÎ Î Î
Î Î Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î Î Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
ÎÎÎ Î Î
Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î
Symbol
V
CC
V
in
Parameter
Min
2.0
Max
6.0
Unit
V
V
V
Positive DC Supply Voltage
DC Input Voltage (Any Pin)
(Referenced to GND)
(Referenced to GND)
GND
0.0
V
CC
1.2
V
IO
*
T
A
Static or Dynamic Voltage Across Switch
Operating Temperature Range, All Package Types
Input Rise/Fall Time
(Channel Select or Enable Inputs)
– 55
0
0
0
+ 125
1000
500
400
°C
ns
t
r
, t
f
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
*For voltage drops across switch greater than 1.2 V (switch on), excessive V
CC
current may be
drawn; i.e., the current out of the switch may contain both V
CC
and switch input components. The
reliability of the device will be unaffected unless the Maximum Ratings are exceeded.
Symbol
V
IH
Parameter
Minimum High−Level Input Voltage,
Channel−Select or Enable Inputs
Condition
R
on
= Per Spec
V
CC
V
2.0
3.0
4.5
6.0
2.0
3.0
4.5
6.0
6.0
6.0
V
IL
Maximum Low−Level Input Voltage,
Channel−Select or Enable Inputs
R
on
= Per Spec
I
in
I
CC
Maximum Input Leakage Current on Digital Pins
(Enable/A/B/C)
Maximum Quiescent Supply Current
(per Package)
V
in
= V
CC
or GND
V
in(digital)
= V
CC
or GND
V
in(analog)
= GND
RECOMMENDED OPERATING CONDITIONS
DC CHARACTERISTICS — Digital Section
(Voltages Referenced to GND) V
EE
= GND, Except Where Noted
Guaranteed Limit
−55 to 25°C
1.50
2.10
3.15
4.20
0.50
0.90
1.35
1.80
±
0.1
2
≤85°C
1.50
2.10
3.15
4.20
0.50
0.90
1.35
1.80
±
1.0
20
≤125°C
1.50
2.10
3.15
4.20
0.50
0.90
1.35
1.80
±
1.0
40
Unit
V
V
mA
mA
NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D).
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3
MC74HC4851A, MC74HC4852A
DC CHARACTERISTICS — Analog Section
Guaranteed Limit
Symbol
R
on
Parameter
Maximum “ON” Resistance
Condition
V
in
= V
IL
or V
IH
;V
IS
= V
CC
to
GND; I
S
≤
2.0 mA
V
CC
2.0
3.0
4.5
6.0
2.0
3.0
4.5
6.0
6.0
−55 to 25°C
1700
1100
550
400
300
160
80
60
±0.1
±0.1
±0.1
≤85°C
1750
1200
650
500
400
200
100
80
±0.1
±0.1
±0.1
≤125°C
1800
1300
750
600
500
240
120
100
±0.1
±0.1
±0.1
Unit
W
DR
on
Delta “ON” Resistance
V
in
= V
IL
or V
IH
; V
IS
= V
CC
/2
I
S
≤
2.0 mA
W
I
off
Maximum Off−Channel Leakage Current,
Any One Channel
Common Channel
V
in
= V
CC
or GND
mA
I
on
Maximum On−Channel Leakage
V
in
= V
CC
or GND
Channel−to−Channel
mA
6.0
AC CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
t
PHL
,
t
PLH
Parameter
Maximum Propagation Delay, Analog Input to Analog Output
V
CC
2.0
3.0
4.5
6.0
2.0
3.0
4.5
6.0
−55 to 25°C
160
80
40
30
260
160
80
60
10
35
130
5.0
20
≤85°C
180
90
45
35
280
180
90
70
10
35
130
≤125°C
200
100
50
40
300
200
100
80
10
35
130
Unit
ns
t
PHL
,
t
PHZ,PZH
t
PLH
,
t
PLZ,PZL
C
in
Maximum Propagation Delay, Enable or Channel−Select to Analog Output
ns
Maximum Input Capacitance
(All Switches Off)
(All Switches Off)
Power Dissipation Capacitance
Digital Pins
Any Single Analog Pin
Common Analog Pin
Typical
pF
C
PD
pF
INJECTION CURRENT COUPLING SPECIFICATIONS
(V
CC
= 5V, T
A
= −55°C to +125°C)
Symbol
VD
out
Parameter
Maximum Shift of Output Voltage of Enabled Analog Channel
Condition
I
in
*
≤
1 mA, R
S
≤
3,9 kW
I
in
*
≤
10 mA, R
S
≤
3,9 kW
I
in
*
≤
1 mA, R
S
≤
20 kW
I
in
*
≤
10 mA, R
S
≤
20 kW
Typ
0.1
1.0
0.5
5.0
Max
1.0
5.0
2.0
20
Unit
mV
* I
in
= Total current injected into all disabled channels.
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