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June 1989
9312 DM9312 One of Eight Line
Data Selectors Multiplexers
General Description
These data selectors multiplexers contain inverter drivers
to supply full complementary on-chip binary decoded data
selection
The 9312 is a single 8-bit multiplexer with complementary
outputs and a strobe control When the strobe is low the
function is enabled When a high logic level is applied to the
strobe the output is forced to the logic zero state regardless
of the logic level of the data inputs
Features
Y Selects one-of-eight data sources
Y Performs parallel to serial conversion
Y Strobe controlled outputs
Y Complementary outputs
Connection Diagram
Dual-In-Line Package
Function Table
Order Number 9312DMQB 9312FMQB or DM9312N
See NS Package Number J16A N16E or W16A
TL F 6605 – 1
Inputs
Outputs
Select
CBA
Strobe
G
Y
Y
XXX
H
LH
L L L L D0 D0
L L H L D1 D1
L H L L D2 D2
L H H L D3 D3
H L L L D4 D4
H L H L D5 D5
H H L L D6 D6
H H H L D7 D7
H e High Level L e Low Level X e Don’t Care
D0 D1 D7 e The level of the respective D input
C1995 National Semiconductor Corporation TL F 6605
RRD-B30M105 Printed in U S A

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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
Military
b55 C to a125 C
Commercial
0 C to a70 C
Storage Temperature Range
b65 C to a150 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
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
Min
45
2
b55
Military
Nom
5
Max
55
08
b0 8
16
125
Min
4 75
2
0
Commercial
Nom
Max
5 5 25
08
b0 8
16
70
Units
V
V
V
mA
mA
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
VOH
VOL
II
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current Max
Input Voltage
VCC e Min II e b12 mA
VCC e Min IOH e Max
VIL e Max VIH e Min
VCC e Min IOL e Max
VIH e Min VIL e Max
VCC e Max VI e 5 5V
24
IIH
High Level Input
VCC e Max VI e 2 4V
Current
IIL
Low Level Input
VCC e Max VI e 0 4V
Current
IOS Short Circuit
Output Current
VCC e Max
(Note 2)
MIL
COM
b20
b30
ICC Supply Current
VCC e Max (Note 3)
Note 1 All typicals are at VCC e 5V TA e 25 C
Note 2 Not more than one output should be shorted at a time
Note 3 ICC is measured with the STROBE and DATA SELECT inputs 4 5V and all other inputs and outputs open
Typ
(Note 1)
34
02
27
Max
b1 5
04
1
40
b1 6
b70
b85
44
Units
V
V
V
mA
mA
mA
mA
mA
2

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Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
From (Input)
To (Output)
Military
Commercial
RL e 400X CL e 15 pF
Min Max Min Max
Units
tPLH
Propagation Delay Time
Selectz
Low to High Level Output
to Y
34 33 ns
tPHL
Propagation Delay Time
Select
High to Low Level Output
to Y
34 35 ns
tPLH
Propagation Delay Time
Select
Low to High Level Output
to Y
24 28 ns
tPHL
Propagation Delay Time
Select
High to Low Level Output
to Y
26 25 ns
tPLH
Propagation Delay Time
Low to High Level Output
Data
to Y
24 23 ns
tPHL
Propagation Delay Time
High to Low Level Output
Data
to Y
24 25 ns
tPLH
Propagation Delay Time
Low to High Level Output
Data
to Y
14 13 ns
tPHL
Propagation Delay Time
High to Low Level Output
Data
to Y
16 13 ns
tPLH
Propagation Delay Time
Strobe
Low to High Level Output
to Y
30 33 ns
tPHL
Propagation Delay Time
Strobe
High to Low Level Output
to Y
30 32 ns
tPLH
Propagation Delay Time
Strobe
Low to High Level Output
to Y
20 19 ns
tPHL
Propagation Delay Time
Strobe
High to Low Level Output
to Y
23 21 ns
3