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PDF HD74HC138 Data sheet ( Hoja de datos )
| Número de pieza | HD74HC138 | |
| Descripción | 3-to-8-line Decoder/Demultiplexer | |
| Fabricantes | Renesas | |
| Logotipo |  |
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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
• 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
Part Name
Package Type
Package Code
(Previous Code)
HD74HC138P
DILP-16 pin
PRDP0016AE-B
(DP-16FV)
HD74HC138FPEL
SOP-16 pin (JEITA)
PRSP0016DH-B
(FP-16DAV)
HD74HC138RPEL
SOP-16 pin (JEDEC)
PRSP0016DG-A
(FP-16DNV)
HD74HC138TELL
TSSOP-16 pin
PTSP00016JB-A
(TTP-16DAV)
Note: Please consult the sales office for the above package availability.
Package
Abbreviation
P
FP
RP
T
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
ELL (2,000 pcs/reel)
REJ03D0570-0300 Rev.3.00 Mar 25, 2009
Page 1 of 7
1 page  
HD74HC138
Waveforms
Input
tr
10 %
90 %
50 %
tPLH
tf
90 %
50 %
10 %
tPHL
Same-phase output
50 %
10 %
90 %
tPHL tTLH
90 %
50 %
10 %
tPLH
tTHL
VCC
0V
VOH
VOL
Inverse-phase output
90 %
50 %
10 %
50 %
10 %
90 %
VOH
VOL
tTHL
tTLH
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
REJ03D0570-0300 Rev.3.00 Mar 25, 2009
Page 5 of 7
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HD74HC138.PDF ] | |
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