MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Analog Multiplexers/
Demultiplexers with Injection
Current Effect Control
MC74HC4851A
MC74HC4852A
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.
•
•
•
•
•
Injection Current Cross–Coupling Less than 1mV/mA (See Figure 9)
Pin Compatible to HC405X and MC1405XB Devices
Power Supply Range (VCC – 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
N SUFFIX
16–LEAD PLASTIC DIP PACKAGE
CASE 648–08
D SUFFIX
16–LEAD PLASTIC SOIC PACKAGE
CASE 751B–05
DW SUFFIX
16–LEAD PLASTIC WIDE SOIC PACKAGE
CASE 751G–02
13
X0
14
X1
15
X2
ANALOG
12
MULTIPLEXER/
INPUTS/ X3
1
DEMULTIPLEXER
OUTPUTS X4
5
X5
2
X6
4
X7
11
A
CHANNEL
10
B
SELECT
9
INPUTS
C
6
ENABLE
PIN 16 = VCC
PIN 8 = GND
DT SUFFIX
16–LEAD PLASTIC TSSOP PACKAGE
CASE 948F–01
3
X
COMMON
OUTPUT/
INPUT
ORDERING INFORMATION
MC74HCXXXXAN
MC74HCXXXXAD
MC74HCXXXXADW
MC74HCXXXXADT
Plastic
SOIC
SOIC Wide
TSSOP
Figure 1. MC74HC4851A Logic Diagram
Single–Pole, 8–Position Plus Common Off
VCC
16
X2
15
X1
14
X0
13
X3
12
A
11
B
10
C
9
FUNCTION TABLE – MC74HC4851A
Control Inputs
Enable
L
L
L
L
L
L
L
L
H
C
L
L
L
L
H
H
H
H
X
Select
B
A
L
L
H
H
L
L
H
H
X
L
H
L
H
L
H
L
H
X
ON Channels
X0
X1
X2
X3
X4
X5
X6
X7
NONE
1
X4
2
X6
3
X
4
X7
5
X5
6
7
Enable NC
8
GND
Figure 2. MC74HC4851A 16–Lead Pinout
(Top View)
11/97
©
Motorola, Inc. 1997
1
REV 3
MC74HC4851A MC74HC4852A
FUNCTION TABLE – MC74HC4852A
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
VCC
16
X2
15
X1
14
X
13
X0
12
X3
11
A
10
B
9
CHANNEL-SELECT
INPUTS
PIN 16 = VCC
PIN 8 = GND
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)
MOTOROLA
2
High–Speed CMOS Logic Data
DL129 — Rev 6
MC74HC4851A MC74HC4852A
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MAXIMUM RATINGS*
Symbol
VCC
Vin
I
Parameter
Value
Unit
V
V
Positive DC Supply Voltage
DC Input Voltage (Any Pin)
(Referenced to GND)
– 0.5 to + 7.0
(Referenced to GND)
– 0.5 to VCC + 0.5
±
25
750
500
450
DC Current, Into or Out of Any Pin
Power Dissipation in Still Air,
mA
PD
Plastic DIP†
SOIC Package†
TSSOP Package†
mW
Tstg
TL
Storage Temperature Range
– 65 to + 150
260
_
C
_
C
Lead Temperature, 1 mm from Case for 10 Seconds
Plastic DIP, SOIC or TSSOP Package
* Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
†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 Motorola 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, Vin and
Vout should be constrained to the
range GND (Vin or Vout) VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
v
v
RECOMMENDED OPERATING CONDITIONS
ÎÎÎ
Î
Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
ÎÎÎ Î Î
Î Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î Î Î
Î
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Î
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Î
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Î Î
Î
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Î
Î
Symbol
VCC
Vin
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
VCC
1.2
VIO*
TA
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
tr, tf
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
* For voltage drops across switch greater than 1.2V (switch on), excessive VCC current may be
drawn; i.e., the current out of the switch may contain both VCC 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) VEE = GND, Except Where Noted
Symbol
S b l
VIH
Parameter
P
Minimum High–Level Input Voltage,
Channel–Select or Enable Inputs
Condition
C di i
Ron = Per Spec
VCC
V
2.0
3.0
4.5
6.0
2.0
3.0
4.5
6.0
6.0
6.0
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
U i
V
VIL
Maximum Low–Level Input Voltage,
Channel–Select or Enable Inputs
Ron = Per Spec
V
Iin
ICC
Maximum Input Leakage Current on
Digital Pins (Enable/A/B/C)
Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
Vin(digital) = VCC or GND
Vin(analog) = GND
µA
µA
NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
High–Speed CMOS Logic Data
DL129 — Rev 6
3
MOTOROLA
MC74HC4851A MC74HC4852A
DC CHARACTERISTICS — Analog Section
Guaranteed Limit
Symbol
S b l
Ron
Parameter
P
Maximum “ON” Resistance
Condition
C di i
Vin = VIL or VIH;VIS = VCC to
GND; IS
≤
2.0 mA
VCC
2.0
3.0
4.5
6.0
2.0
3.0
4.5
6.0
6.0
Vin = VCC or GND
6.0
–55 to 25°C
1700
1100
550
400
300
160
80
60
±0.1
±0.2
±0.2
≤85°C
1750
1200
650
500
400
200
100
80
±0.5
±2.0
±2.0
≤125°C
1800
1300
750
600
500
240
120
100
±1.0
±4.0
±4.0
Unit
U i
Ω
∆R
on
Delta “ON” Resistance
Vin = VIL or VIH; VIS = VCC/2
IS
≤
2.0 mA
Ω
Ioff
Maximum Off–Channel Leakage Current,
Any One Channel
Common Channel
Maximum On–Channel Leakage
Channel–to–Channel
Vin = VCC or GND
µA
Ion
µA
AC CHARACTERISTICS
(CL = 50 pF, Input tr = tf = 6 ns)
Symbol
tPHL,
tPLH
Parameter
Maximum Propagation Delay, Analog Input to Analog Output
VCC
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
tPHL, tPHZ,PZH
tPLH, tPLZ,PZL
Maximum Propagation Delay, Enable or Channel–Select to
Analog Output
ns
Cin
Maximum Input Capacitance
(All Switches Off)
(All Switches Off)
Power Dissipation Capacitance
Digital Pins
Any Single Analog Pin
Common Analog Pin
Typical
pF
CPD
pF
INJECTION CURRENT COUPLING SPECIFICATIONS
(VCC = 5V, TA = –55°C to +125°C)
Symbol
V∆out
Parameter
Maximum Shift of Output Voltage of Enabled Analog
Channel
Typ
0.1
1.0
0.5
5.0
Max
0.5
5.0
2.0
20
Unit
mV
Condition
Iin*
≤
1mA, RS
≤
3,9kΩ
Iin*
≤
10mA, RS
≤
3,9kΩ
Iin*
≤
1mA, RS
≤
20kΩ
Iin*
≤
10mA, RS
≤
20kΩ
* Iin = Total current injected into all disabled channels.
MOTOROLA
4
High–Speed CMOS Logic Data
DL129 — Rev 6
MC74HC4851A MC74HC4852A
1100
1000
R on , ON RESISTANCE (OHMS)
–55°C
+25°C
+125°C
R on , ON RESISTANCE (OHMS)
900
800
700
600
500
400
300
200
100
0
0.0
0.4
0.8
1.2
1.6
2.0
1100
1000
900
800
700
600
500
400
300
200
100
0
0.0
0.6
1.2
1.8
2.4
3.0
–55°C
+25°C
+125°C
Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND
Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND
Figure 5. Typical On Resistance VCC = 2V
Figure 6. Typical On Resistance VCC = 3V
660
600
R on , ON RESISTANCE (OHMS)
R on , ON RESISTANCE (OHMS)
540
480
420
360
300
240
180
120
60
0
0.0
0.9
1.8
2.7
3.6
4.5
–55°C
+25°C
+125°C
440
400
360
320
–55°C
280
240
200
160
120
80
40
0
0.0
1.2
2.4
3.6
4.8
6.0
+25°C
+125°C
Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND
Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND
Figure 7. Typical On Resistance VCC = 4.5V
Figure 8. Typical On Resistance VCC = 6V
High–Speed CMOS Logic Data
DL129 — Rev 6
5
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