MC74LVX8051
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2
LOGIC DIAGRAM
MC74LVX8051
Single−Pole, 8−Position Plus Common Off
X0
13
X1
14
X2
15
X3
12
X4
1
X5
5
X6
2
X7
4
A
11
B
10
C
9
ENABLE
6
MULTIPLEXER/
DEMULTIPLEXER
X
3
ANALOG
INPUTS/
CHANNEL
INPUTS
PIN 16 = V
CC
PIN 8 = GND
COMMON
OUTPUT/
INPUT
OUTPUTS
SELECT
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
FUNCTION TABLE − MC74LVX8051
Control Inputs
ON Channels
Enable
Select
CBA
X0
X1
X2
X3
X4
X5
X6
X7
NONE
L
L
L
L
L
L
L
L
H
X = Don’t Care
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
Positive DC Supply Voltage (Referenced to GND) –0.5 to +7.0 V
V
IS
Analog Input Voltage −0.5 to V
CC
+ 0.5 V
V
in
Digital Input Voltage (Referenced to GND) –0.5 to V
CC
+ 0.5 V
I DC Current, Into or Out of Any Pin ± 20 mA
P
D
Power Dissipation in Still Air, SOIC Package†
TSSOP Package†
500
450
mW
T
stg
Storage Temperature Range –65 to +150
_C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds 260
_C
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.
†Derating: SOIC Package: –7 mW/_C from 65_ to 125_C
TSSOP Package: −6.1 mW/_C from 65_ to 125_C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
Positive DC Supply Voltage (Referenced to GND) 2.5 6.0 V
V
IS
Analog Input Voltage 0.0 V
CC
V
V
in
Digital Input Voltage (Referenced to GND) GND V
CC
V
V
IO
* Static or Dynamic Voltage Across Switch 1.2 V
T
A
Operating Temperature Range, All Package Types – 55 + 85
_C
t
r
, t
f
Input Rise/Fall Time (Channel Select or Enable Inputs)
V
CC
= 3.3 V ± 0.3 V
V
CC
= 5.0 V ± 0.5 V
0
0
100
20
ns/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.
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.
