HD74HC138
3-to-8-line Decoder/Demultiplexer with Address Latch
REJ03D0570-0300
Rev.3.00
Mar 25, 2009
Description
The HD74HC138 has 3 binary select inputs (A, B and C). 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 (G1, G2A and G2B) are
provided to ease the cascading of decoders.
Features
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High Speed Operation: tpd (A, B, C to Y) = 16.5 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 V to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Ordering Information
Package Type
Package Code
(Previous Code)
Package
Abbreviation
DILP-16 pin
PRDP0016AE-B
(DP-16FV)
P
HD74HC138FPEL
SOP-16 pin (JEITA)
PRSP0016DH-B
(FP-16DAV)
FP
EL (2,000 pcs/reel)
HD74HC138RPEL
SOP-16 pin (JEDEC)
RP
EL (2,500 pcs/reel)
HD74HC138TELL
TSSOP-16 pin
T
ELL (2,000 pcs/reel)
Part Name
HD74HC138P
Note:
PRSP0016DG-A
(FP-16DNV)
PTSP00016JB-A
(TTP-16DAV)
Please consult the sales office for the above package availability.
REJ03D0570-0300 Rev.3.00 Mar 25, 2009
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Taping Abbreviation
(Quantity)
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