HD74LVC138 Datasheet, PDF (1/6 Pages) Hitachi Semiconductor – 3-to-8-line Decoder / Demultiplexer

HD74LVC138
3-to-8-line Decoder / Demultiplexer
REJ03D0349–0300Z
(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
• 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°C)
• Typical V_OH undershoot > 2.0 V (@V_CC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@V_CC = 3.0 V to 5.5 V)
• Ordering Information
Part Name
Package Type
Package Code
HD74LVC138FPEL
SOP–16 pin (JEITA) FP–16DAV
HD74LVC138TELL
TSSOP–16 pin
TTP–16DAV
Note: Please consult the sales office for the above package availability.
Package
Abbreviation
FP
T
Function Table
Inputs
Enable
Select
Outputs
G₁
G_2A
G_2B
C
B
A
Y₀
Y₁
Y₂
Y₃
Y₄
X
X
H
X
X
X
H
H
H
H
H
X
H
X
X
X
X
H
H
H
H
H
L
X
X
X
X
X
H
H
H
H
H
H
L
L
L
L
L
L
H
H
H
H
H
L
L
L
L
H
H
L
H
H
H
H
L
L
L
H
L
H
H
L
H
H
H
L
L
L
H
H
H
H
H
L
H
H
L
L
H
L
L
H
H
H
H
L
H
L
L
H
L
H
H
H
H
H
H
H
L
L
H
H
L
H
H
H
H
H
H
L
L
H
H
H
H
H
H
H
H
H: High level
L: Low level
X: Immaterial
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Y₅
Y₆
Y₇
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
L
H
H
H
L
Rev.3.00 Jul. 23, 2004 page 1 of 5