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HD74LVC138TELL Datasheet

  • HD74LVC138TELL

  • 3-to-8-line Decoder / Demultiplexer

  • 179.35KB

  • 6頁

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HD74LVC138
3-to-8-line Decoder / Demultiplexer
REJ03D0349鈥?300Z
(Previous ADE-205-068B (Z))
Rev.3.00
Jul. 23, 2004
Description
The HD74LVC138 has three binary select inputs in a 16 pin package. If the device is enabled these inputs determine
which one of the eight normally high outputs will go low. Two active low and one active high enables are provided to
ease the cascading of decoders. Low voltage and high-speed operation is suitable at the battery drive product (note type
personal computer) and low power consumption extends the life of a battery for long time operation.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
V
CC
= 2.0 V to 5.5 V
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25擄C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25擄C)
High output current 鹵24 mA (@V
CC
= 3.0 V to 5.5 V)
Ordering Information
Package Type
SOP鈥?6 pin (JEITA)
TSSOP鈥?6 pin
Package Code
FP鈥?6DAV
TTP鈥?6DAV
Package
Abbreviation
FP
T
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Part Name
HD74LVC138FPEL
HD74LVC138TELL
Note: Please consult the sales office for the above package availability.
Function Table
Inputs
Enable
G
1
X
X
L
H
H
H
H
H
H
H
H
H:
L:
X:
G
2A
X
H
X
L
L
L
L
L
L
L
L
G
2B
H
X
X
L
L
L
L
L
L
L
L
Select
C
X
X
X
L
L
L
L
H
H
H
H
B
X
X
X
L
L
H
H
L
L
H
H
A
X
X
X
L
H
L
H
L
H
L
H
Outputs
Y
0
H
H
H
L
H
H
H
H
H
H
H
Y
1
H
H
H
H
L
H
H
H
H
H
H
Y
2
H
H
H
H
H
L
H
H
H
H
H
Y
3
H
H
H
H
H
H
L
H
H
H
H
Y
4
H
H
H
H
H
H
H
L
H
H
H
Y
5
H
H
H
H
H
H
H
H
L
H
H
Y
6
H
H
H
H
H
H
H
H
H
L
H
Y
7
H
H
H
H
H
H
H
H
H
H
L
High level
Low level
Immaterial
Rev.3.00 Jul. 23, 2004 page 1 of 5

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