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9321 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # 9321
Description  DUAL 1-OF-4 DECODER
PDF  6 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

9321 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Switching Characteristics VCC ea50V TA ea25 C (See Section 1 for test waveforms and output load)
Symbol
Parameter
CL e 15 pF
Units
Min
Max
tPLH
Propagation Delay An to On20
ns
tPHL
21
tPLH
Propagation Delay E to On14
ns
tPHL
18
Functional Description
The 9321 consists of two separate decoders each designed
to accept two binary weighted inputs and provide four mutu-
ally exclusive active LOW outputs as shown in the logic
symbol Each decoder can be used as a 4-output demulti-
plexer by using the enable as a data input
Truth Table (Each Decoder)
Inputs
Outputs
E
A0
A1
O0O1O2O3
L
L
L
L
HHH
L
H
L
HLH
H
L
L
H
H
HLH
L
H
H
HHH
L
H
X
X
HHHH
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Logic Diagram
TLF10209 – 3
3



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