TL F 9602
93L09
Dual
4-Input
Multiplexer
June 1989
93L09
Dual 4-Input Multiplexer
General Description
The 93L09 monolithic dual 4-input digital multiplexers con-
sist of two multiplexing circuits with common input select
logic Each circuit contains four inputs and fully buffered
complementary outputs In addition to multiplexer operation
the 93L09 can generate any two functions of three vari-
ables Active pullups in the outputs ensure high drive and
high speed performance Because of its high speed per-
formance and on-chip select decoding the 93L09 may be
cascaded to multiple levels so that any number of lines can
be multiplexed onto a single output bus
Features
Y
Multifunction capability
Y
On-chip select logic decoding
Y
Fully buffered complementary outputs
Connection Diagram
Dual-In-Line Package
TL F 9602 1
Order Number 93L09DMQB or 93L09FMQB
See NS Package Number J16A or W16A
Logic Symbol
TL F 9602 2
V
CC
e
Pin 16
GND
e
Pin 8
Pin Names
Description
S0 S1
Common Select Inputs
I0a I3a
Multiplexer A Inputs
Za
Multiplexer A Output
Za
Complementary Multiplexer A Output
I0b I3b
Multiplexer B Inputs
Zb
Multiplexer B Output
Zb
Complementary Multiplexer B Output
C1995 National Semiconductor Corporation
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings
(Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
5 5V
Operating Free Air Temperature Range
MIL
b
55 C to
a
125 C
Storage Temperature Range
b
65 C to
a
150 C
Note
The ``Absolute Maximum Ratings'' are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ``Electrical Characteristics''
table are not guaranteed at the absolute maximum ratings
The ``Recommended Operating Conditions'' table will define
the conditions for actual device operation
Recommended Operating Conditions
Symbol
Parameter
93L09 (MIL)
Units
Min
Nom
Max
V
CC
Supply Voltage
4 5
5
5 5
V
V
IH
High Level Input Voltage
2
V
V
IL
Low Level Input Voltage
0 7
V
I
OH
High Level Output Current
b
400
m
A
I
OL
Low Level Output Current
4 8
mA
T
A
Free Air Operating Temperature
b
55
125
C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
V
I
Input Clamp Voltage
V
CC
e
Min II
e b
10 mA
b
1 5
V
V
OH
High Level Output Voltage
V
CC
e
Min I
OH
e
Max
2 4
V
V
IL
e
Max V
IH
e
Min
V
OL
Low Level Output Voltage
V
CC
e
Min I
OL
e
Max
0 3
V
V
IH
e
Min V
IL
e
Max
II
Input Current
Max
V
CC
e
Max V
I
e
5 5V
1
mA
Input Voltage
IIH
High Level Input Current
V
CC
e
Max V
I
e
2 4V
20
m
A
I
IL
Low Level Input Current
V
CC
e
Max V
I
e
0 3V
b
400
m
A
I
OS
Short Circuit
V
CC
e
Max (Note 2)
b
10
b
40
mA
Output Current
I
CC
Supply Current
V
CC
e
Max
11 5
mA
Note 1
All typicals are at V
CC
e
5V T
A
e
25 C
Note 2
Not more than one output should be shorted at a time and the duration should not exceed one second
2
Switching Characteristics
V
CC
e a
5 0V T
A
e a
25 C
Symbol
Parameter
C
L
e
15 pF
Units
Min
Max
t
PLH
Propagation Delay
70
ns
t
PHL
S
0
to Z
a
60
t
PLH
Propagation Delay
55
ns
t
PHL
S
0
to Z
a
50
t
PLH
Propagation Delay
70
ns
t
PHL
I
0
to Z
a
65
t
PLH
Propagation Delay
40
ns
t
PHL
S
0
to Z
a
60
Functional Description
The 93L09 dual 4-input multiplexers are able to select two
bits of either HIGH or LOW data or control from up to four
sources in one package The 93L09 is the logical imple-
mentation of two-pole four-position switch with the position
of the switch being set by the logic levels supplied to the
two select inputs Both assertion and negation outputs are
provided for both multiplexers The logic equations for the
outputs are shown below
Za
e
I0a
S1
S0
a
I1a
S1
S0
a
I2a
S1
S0
a
I3a
S1
S0
Zb
e
I0b
S1
S0
a
I1b
S1
S0
a
I2a
S1
S0
a
I3b
S1
S0
The 93L09 is frequently used to move data from a group of
registers to a common output bus The particular register
from which the data came would be determined by the state
of the select inputs A less obvious application is as a func-
tion generator The 93L09 can generate two functions of
three variables This is useful for implementing random gat-
ing functions
Truth Table
Select
Inputs
Outputs
Inputs
(a or b)
(a or b)
S0
S1
I0
I1
I2
I3
Z
Z
L
L
L
X
X
X
L
H
L
L
H
X
X
X
H
L
H
L
X
L
X
X
L
H
H
L
X
H
X
X
H
L
L
H
X
X
L
X
L
H
L
H
X
X
H
X
H
L
H
H
X
X
X
L
L
H
H
H
X
X
X
H
H
L
H
e
HIGH voltage level
L
e
LOW voltage level
X
e
Immaterial
Logic Diagram
TL F 9602 3
3
93L09
Dual
4-Input
Multiplexer
Physical Dimensions
inches (millimeters)
16-Lead Ceramic Dual-In-Line Package (J)
Order Number 93L09DMQB
NS Package Number J16A
16-Lead Ceramic Flat Package (W)
Order Number 93L09FMQB
NS Package Number W16A
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failure to perform when properly used in accordance
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with instructions for use provided in the labeling can
effectiveness
be reasonably expected to result in a significant injury
to the user
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