MC74HCT4851A,
MC74HCT4852A
Analog Multiplexers/
Demultiplexers with
Injection Current Effect
Control with LSTTL
Compatible Inputs
Automotive Customized
This device is 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
or LSTTL outputs.
Features
16
1
SOIC−16
D SUFFIX
CASE 751B
1
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MARKING
DIAGRAMS
16
HCT485xAG
AWLYWW
16
16
1
SOIC−16 WIDE
DW SUFFIX
CASE 751G
1
HCT485xA
AWLYWWG
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
1
X
A
WL, L
YY, Y
WW, W
G or
G
= 1 or 2
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
HCT4
85xA
ALYWG
G
•
•
•
•
•
•
Injection Current Cross−Coupling Less than 1mV/mA (See Figure 6)
Pin Compatible to HC405x and MC1405xB Devices
Power Supply Range (V
CC
− GND) = 4.5 to 5.5 V
In Compliance With the Requirements of JEDEC Standard No. 7 A
Chip Complexity: 154 FETs or 36 Equivalent Gates
NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
•
These Devices are Pb−Free and are RoHS Compliant
(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.
©
Semiconductor Components Industries, LLC, 2016
1
August, 2016 − Rev. 8
Publication Order Number:
MC74HCT4851A/D
MC74HCT4851A, MC74HCT4852A
FUNCTION TABLE − MC74HCT4851A
Control Inputs
X0
14
X1
15
X2
ANALOG
12
MULTIPLEXER/
INPUTS/ X3
DEMULTIPLEXER
OUTPUTS X4
1
5
X5
2
X6
4
X7
11
A
CHANNEL
10
B
SELECT
9
INPUTS
C
6
ENABLE
PIN 16 = V
CC
PIN 8 = GND
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
3
X
COMMON
OUTPUT/
INPUT
Figure 1. MC74HCT4851A Logic Diagram
Single−Pole, 8−Position Plus Common Off
1
X4
2
X6
3
X
4
X7
5
X5
6
7
8
GND
Enable NC
Figure 2. MC74HCT4851A 16−Lead Pinout
(Top View)
FUNCTION TABLE − MC74HCT4852A
Control Inputs
Select
Enable
X0
14
X1
15
X2
11
X3
Y0
Y1
Y2
Y3
A
B
1
5
2
4
10
9
6
12
13
B
L
L
H
H
X
A
L
H
L
H
X
ON Channels
Y0
Y1
Y2
Y3
NONE
X0
X1
X2
X3
X SWITCH
X
COMMON
OUTPUTS/INPUTS
ANALOG
INPUTS/OUTPUTS
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. MC74HCT4852A 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. MC74HCT4852A 16−Lead Pinout
(Top View)
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MC74HCT4851A, MC74HCT4852A
MAXIMUM RATINGS
Symbol
V
CC
V
in
I
P
D
T
stg
T
L
Parameter
Positive DC Supply Voltage
DC Input Voltage (Any Pin)
(Referenced to GND)
(Referenced to GND)
Value
–0.5 to + 7.0
–0.5 to V
CC
+ 0.5
$25
SOIC Package†
TSSOP Package†
500
450
–65 to + 150
260
Unit
V
V
mA
mW
°C
°C
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.
DC Current, Into or Out of Any Pin
Power Dissipation in Still Air,
Storage Temperature Range
Lead Temperature, 1 mm from Case for 10 Seconds
SOIC or TSSOP Package
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of
these limits are exceeded, device functionality should not be assumed, damage may occur and
reliability may be affected.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
in
V
IO
*
T
A
t
r
, t
f
Parameter
Positive DC Supply Voltage
DC Input Voltage (Any Pin)
(Referenced to GND)
(Referenced to GND)
Min
4.5
GND
0.0
– 55
0
0
0
Max
5.5
V
CC
1.2
+ 125
1000
500
400
Unit
V
V
V
°C
ns
Static or Dynamic Voltage Across Switch
Operating Temperature Range, All Package Types
Input Rise/Fall Time
(Channel Select or Enable Inputs)
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
Functional operation above the stresses listed in the Recommended Operating Ranges is not
implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may
affect device reliability.
*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.
DC CHARACTERISTICS — Digital Section
(Voltages Referenced to GND) V
EE
= GND, Except Where Noted
Symbol
V
IH
Parameter
Minimum High−Level Input Voltage,
Channel−Select or Enable Inputs
Maximum Low−Level Input Voltage,
Channel−Select or Enable Inputs
Maximum Input Leakage Current on Digital Pins
(Enable/A/B/C)
Maximum Quiescent Supply Current
(per Package)
Condition
R
on
= Per Spec
V
CC
V
4.5
to
5.5
4.5
to
5.5
5.5
5.5
Guaranteed Limit
−55 to 25°C
2.0
≤85°C
2.0
≤125°C
2.0
Unit
V
V
IL
R
on
= Per Spec
0.8
0.8
0.8
V
I
in
I
CC
V
in
= V
CC
or GND
V
in(digital)
= V
CC
or GND
V
in(analog)
= GND
±
0.1
2.0
±
1.0
20
±
1.0
40
mA
mA
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MC74HCT4851A, MC74HCT4852A
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 (Note 1); I
S
≤
2.0 mA
(Note 2)
V
in
= V
IL
or V
IH
; V
IS
= V
CC
/2
(Note 1); I
S
≤
2.0 mA (Note 2)
V
in
= V
CC
or GND
5.5
V
in
= V
CC
or GND
5.5
V
CC
4.5
5.5
4.5
5.5
−55 to 25°C
550
400
80
60
±0.1
±0.1
±0.1
≤85°C
650
500
100
80
±0.1
±0.1
±0.1
≤125°C
750
600
120
100
±0.1
±0.1
±0.1
Unit
W
DR
on
I
off
Delta “ON” Resistance
Maximum Off−Channel Leakage Current,
Any One Channel
Common Channel
Maximum On−Channel Leakage
Channel−to−Channel
W
mA
I
on
mA
1. V
IS
is the input voltage of an analog I/O pin.
2. I
S
is the currebnt flowing in or out of analog I/O pin.
AC CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns, V
CC
= 5.0 V
±
10%)
Symbol
t
PHL
,
t
PLH
t
PHL
,
t
PHZ,PZH
t
PLH
,
t
PLZ,PZL
C
in
Parameter
Maximum Propagation Delay, Analog Input to Analog Output
Maximum Propagation Delay, Enable or Channel−Select to Analog Output
V
CC
5.0
5.0
−55 to 25°C
40
80
≤85°C
45
90
≤125°C
50
100
Unit
ns
ns
Maximum Input Capacitance
(All Switches Off)
(All Switches Off)
Power Dissipation Capacitance
Digital Pins
Any Single Analog Pin
Common Analog Pin
Typical
5.0
10
35
40
20
10
35
40
10
35
40
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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MC74HCT4851A, MC74HCT4852A
Figure 5. Typical On Resistance V
CC
= 4.5V
Vin2 / Iin2 meas. here.
Current Source
HP4155C
Smu #2
4
X7
External DC P.S.
V
CC
= 5 V
16
Vin1 = 4.9 V (Smu3)
Iin1 measure here
Vm1 connected here.
RS
X0
13
3
X
Vout
Vm2 connected here.
6
8
NOTES: Rs = 3.9 KW or 20 KW.
NOTES:
Vm1 & Vm2 are internal
NOTES:
HP4155C Voltmeters.
GND or V
SS
Figure 6. Injection Current Coupling Specification
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