74LVX138M Fairchild Semiconductor, 74LVX138M Datasheet - Page 2
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74LVX138M
Manufacturer Part Number
74LVX138M
Description
DECODER/DEMUX 1-OF-8 LV 16SOIC
Manufacturer
Fairchild Semiconductor
Series
74LVXr
Type
Decoder/Demultiplexerr
Datasheet
1.74LVX138MX.pdf
(7 pages)
Specifications of 74LVX138M
Circuit
1 x 3:8
Independent Circuits
1
Current - Output High, Low
4mA, 4mA
Voltage Supply Source
Single Supply
Voltage - Supply
2 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Product
Decoders, Encoders, Multiplexers & Demultiplexers
Logic Family
74LV
Number Of Lines (input / Output)
1.0 / 8.0
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Input Lines
1.0
Number Of Output Lines
8.0
Power Dissipation
180 mW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
74LVX138M
Manufacturer:
FAIRCHIL
Quantity:
414
Company:
Part Number:
74LVX138MTC
Manufacturer:
Fairchild Semiconductor
Quantity:
1 960
Part Number:
74LVX138MTC
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
74LVX138MTCX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
www.fairchildsemi.com
Functional Description
The LVX138 high-speed 1-of-8 decoder/demultiplexer
accepts three binary weighted inputs (A
when enabled, provides eight mutually exclusive active-
LOW outputs (O
inputs, two active-LOW (E
Truth Table
H
L
X
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.
LOW Voltage Level
HIGH Voltage Level
Immaterial
E
H
X
X
L
L
L
L
L
L
L
L
1
0
–O
7
). The LVX138 features three Enable
E
H
X
X
L
L
L
L
L
L
L
L
2
1
, E
E
X
X
H
H
H
H
H
H
H
H
L
2
Inputs
3
) and one active-HIGH (E
A
X
X
X
H
H
H
H
L
L
L
L
0
0
A
H
H
H
H
, A
X
X
X
L
L
L
L
1
1
, A
A
X
X
X
H
H
H
H
L
L
L
L
2
2
) and,
3
O
).
H
H
H
H
H
H
H
H
H
H
L
0
2
All outputs will be HIGH unless E
is HIGH.
The LVX138 can be used as an 8-output demultiplexer by
using one of the active LOW Enable inputs as the data
input and the other Enable inputs as strobes. The Enable
inputs which are not used must be permanently tied to their
appropriate active-HIGH or active-LOW state.
O
H
H
H
H
H
H
H
H
H
H
L
1
O
H
H
H
H
H
H
H
H
H
H
L
2
O
Outputs
H
H
H
H
H
H
H
H
H
H
L
3
O
H
H
H
H
H
H
H
H
H
H
L
4
O
H
H
H
H
H
H
H
H
H
H
L
5
1
and E
O
H
H
H
H
H
H
H
H
H
H
L
6
2
are LOW and E
O
H
H
H
H
H
H
H
H
H
H
L
7
3