MC74HCT4851A,
MC74HCT4852A
Analog Multiplexers/
Demultiplexers with
Injection Current Effect
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Control with LSTTL
MARKING
Compatible Inputs
DIAGRAMS
Automotive Customized
16
SOIC16
This device is pin compatible to standard HC405x and MC1405xB HCT485xAG
D SUFFIX
16
AWLYWW
analog mux/demux devices, but feature injection current effect
CASE 751B
1
control. This makes them especially suited for usage in automotive
1
applications where voltages in excess of normal logic voltage are
common.
16
The injection current effect control allows signals at disabled analog
SOIC16 WIDE
input channels to exceed the supply voltage range without affecting
HCT485xA
16
DW SUFFIX
AWLYWWG
the signal of the enabled analog channel. This eliminates the need for
CASE 751G
external diode/ resistor networks typically used to keep the analog
1
1
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
16
or LSTTL outputs.
TSSOP16 HCT4
16
Features 85xA
DT SUFFIX
ALYW
CASE 948F
1
Injection Current CrossCoupling Less than 1mV/mA (See Figure 6)
Pin Compatible to HC405x and MC1405xB Devices
1
Power Supply Range (V GND) = 4.5 to 5.5 V
CC
X = 1 or 2
In Compliance With the Requirements of JEDEC Standard No. 7 A
A = Assembly Location
Chip Complexity: 154 FETs or 36 Equivalent Gates
WL, L = Wafer Lot
YY, Y = Year
NLV Prefix for Automotive and Other Applications Requiring
WW, W = Work Week
Unique Site and Control Change Requirements; AECQ100
G or = PbFree Package
Qualified and PPAP Capable
(Note: Microdot may be in either location)
These Devices are PbFree and are RoHS Compliant
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 Publication Order Number:
August, 2016 Rev. 8 MC74HCT4851A/DMC74HCT4851A, MC74HCT4852A
FUNCTION TABLE MC74HCT4851A
Control Inputs
Select
13
X0 Enable CBA ON Channels
14
X1
L L L L X0
15
X2 L L L H X1
ANALOG 12
L L H L X2
MULTIPLEXER/
X3 3
INPUTS/ COMMON
X
1
DEMULTIPLEXER L L H H X3
OUTPUTS OUTPUT/
X4
L H L L X4
5 INPUT
X5
L H L H X5
2
X6
L H H L X6
4
X7 L H H H X7
11
H X X X NONE
A
CHANNEL
10
B
SELECT
9
INPUTS
C V X2 X1 X0 X3 A B C
CC
6
ENABLE
16 15 14 13 12 11 10 9
PIN 16 = V
CC
PIN 8 = GND
Figure 1. MC74HCT4851A Logic Diagram
SinglePole, 8Position Plus Common Off
1 2 3456 7 8
X4 X6 X X7 X5 Enable NC GND
Figure 2. MC74HCT4851A 16Lead Pinout (Top View)
FUNCTION TABLE MC74HCT4852A
Control Inputs
Select
Enable BA ON Channels
12
X0
L L L Y0 X0
14
X1
13 L L H Y1 X1
X SWITCH
X
15
L H L Y2 X2
X2
11
L H H Y3 X3
X3
COMMON
ANALOG
H X X NONE
INPUTS/OUTPUTS OUTPUTS/INPUTS
1
Y0
X = Dont Care
5
3
Y1
Y
Y SWITCH
2
Y2
4
Y3
V X2 X1 X X0 X3 A B
CC
10
A
16 15 14 13 12 11 10 9
CHANNELSELECT
9
PIN 16 = V
CC
INPUTS
B
PIN 8 = GND
6
ENABLE
Figure 3. MC74HCT4852A Logic Diagram
DoublePole, 4Position Plus Common Off
1 2 3 4 567
8
Y0 Y2 Y Y3 Y1 Enable NC GND
Figure 4. MC74HCT4852A 16Lead Pinout (Top View)
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2