74LVQ151SC

© 2001 Fairchild Semiconductor Corporation DS011351 www.fairchildsemi.com
February 1992
Revised June 2001
74LVQ151 Low Voltage 8-Input Multiplexer
74LVQ151
Low Voltage 8-Input Multiplexer
General Description
The LVQ151 is a high-speed 8-input digital multiplexer. It
provides, in one package, the ability to select one line of
data from up to eight sources. The LVQ151 can be used as
a universal function generator to generate any logic func-
tion of four variables. Both true and complementary outputs
are provided.
Features
Ideal for low power/low noise 3.3V applications
Guaranteed simultaneous switching noise level and
dynamic threshold performance
Guaranteed pin-to-pin skew AC performance
Guaranteed incident wave switching into 75
Ordering Code:
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Pin Descriptions
Order Number Package Number Package Description
74LVQ151SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74LVQ151SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Pin Names Description
I
0
I
7
Data Inputs
S
0
S
2
Select Inputs
E
Enable Input
Z Data Output
Z Inverted Data Output
www.fairchildsemi.com 2
74LVQ151
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Functional Description
The LVQ151 is a logic implementation of a single pole, 8-
position switch with the switch position controlled by the
state of three Select inputs, S
0
, S
1
, S
2
. Both true and com-
plementary outputs are provided. The Enable input (E
) is
active LOW. When it is not activated, the complementary
output is HIGH and the true output is LOW regardless of all
other inputs. The logic function provided at the output is:
Z
= E (I
0
S
0
S
1
S
2
+ I
1
S
0
S
1
S
2
+
I
2
S
0
S
1
S
2
+ I
3
S
0
S
1
S
2
+
I
4
S
0
S
1
S
2
+ I
5
S
0
S
1
S
2
+
I
6
S
0
S
1
S
2
+ I
7
S
0
S
1
S
2
)
The LVQ151 provides the ability, in one package to select
from eight sources of data or control information. By proper
manipulation of the inputs, the LVQ151 can provide any
logic function of four variables and its complement.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Inputs Outputs
E
S
2
S
1
S
0
Z Z
HX X X H L
LL L L I
0
I
0
LL L HI
1
I
1
LL H L I
2
I
2
LL HHI
3
I
3
LH L L I
4
I
4
LH L H I
5
I
5
LH H L I
6
I
6
LHHHI
7
I
7
3 www.fairchildsemi.com
74LVQ151
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
(Note 2)
Note 1: The Absolute Maximum Ratings are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum rat-
ings.The Recommended Operating Conditions table will define the condi-
tions for actual device operation.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Note 3: All outputs loaded; thresholds on input associated with output under test.
Note 4: Maximum test duration 2.0 ms, one output loaded at a time.
Note 5: Incident wave switching on transmission lines with impedances as low as 75 for commercial temperature range is guaranteed for 74LVQ.
Note 6: Worst case package.
Note 7: Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V; one output at GND.
Note 8: Max number of Data Inputs (n) switching. (n 1) inputs switching 0V to 3.3V. Input-under-test switching: 3.3V to threshold (V
ILD
), 0V to threshold
(V
IHD
), f = 1 MHz.
Supply Voltage (V
CC
) 0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
= 0.5V 20 mA
V
I
= V
CC
+ 0.5V +20 mA
DC Input Voltage (V
I
) 0.5V to V
CC
+ 0.5V
DC Output Diode Current (I
OK
)
V
O
= 0.5V 20 mA
V
O
= V
CC
+ 0.5V +20 mA
DC Output Voltage (V
O
) 0.5V to V
CC
+ 0.5V
DC Output Source
or Sink Current (I
O
) ±50 mA
DC V
CC
or Ground Current
(I
CC
or I
GND
) ±200 mA
Storage Temperature (T
STG
) 65°C to +150°C
DC Latch-Up Source or
Sink Current ±100 mA
Supply Voltage (V
CC
) 2.0V to 3.6V
Input Voltage (V
I
)0V to V
CC
Output Voltage (V
O
)0V to V
CC
Operating Temperature (T
A
) 40°C to +85°C
Minimum Input Edge Rate (
V/t)
V
IN
from 0.8V to 2.0V
V
CC
@ 3.0V 125 mV/ns
Symbol Parameter
V
CC
T
A
= +25°CT
A
= 40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
IH
Minimum High Level
3.0 1.5 2.0 2.0 V
V
OUT
= 0.1V
Input Voltage or V
CC
0.1V
V
IL
Maximum Low Level
3.0 1.5 0.8 0.8 V
V
OUT
= 0.1V
Input Voltage or V
CC
0.1V
V
OH
Minimum High Level 3.0 2.99 2.9 2.9 V I
OUT
= 50 µA
Output Voltage
3.0 2.58 2.48 V
V
IN
= V
IL
or V
IH
(Note 3)
I
OH
= 12 mA
V
OL
Maximum Low Level 3.0 0.002 0.1 0.1 V I
OUT
= 50 µA
Output Voltage
3.0 0.36 0.44 V
V
IN
= V
IL
or V
IH
(Note 3)
I
OL
= 12 mA
I
IN
Maximum Input
3.6 ±0.1 ±1.0 µA
V
I
= V
CC
,
Leakage Current GND
I
OLD
Minimum Dynamic 3.6 36 mA V
OLD
= 0.8V Max (Note 5)
I
OHD
Output Current (Note 4) 3.6 25 mA V
OHD
= 2.0V (Note 5)
I
CC
Maximum Quiescent
3.6 4.0 40.0 µA
V
IN
= V
CC
Supply Current or GND
V
OLP
Quiet Output
3.3 0.8 V (Note 6)(Note 7)
Maximum Dynamic V
OL
V
OLV
Quiet Output
3.3 0.8 V (Note 6)(Note 7)
Minimum Dynamic V
OL
V
IHD
Maximum High Level
3.3 1.7 2.0 V (Note 6)(Note 8)
Dynamic Input Voltage
V
ILD
Maximum Low Level
3.3 1.7 0.8 V (Note 6)(Note 8)
Dynamic Input Voltage

74LVQ151SC

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 8-Input Multiplexer
Lifecycle:
New from this manufacturer.
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