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PDF HD74HC154 Data sheet ( Hoja de datos )

Número de pieza HD74HC154
Descripción 4-to-16-line Decoder/Demultiplexer
Fabricantes Hitachi Semiconductor　
Logotipo Hitachi Semiconductor Logotipo



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No Preview Available ! HD74HC154 Hoja de datos, Descripción, Manual

HD74HC154
4-to-16-line Decoder/Demultiplexer
Description
The HD74HC154 has 4 binary select inputs (A, B, C and D). IF the device is enabled these inputs
determine which one of the 16 normally high outputs will go low. Two active low enables (G1 and G2) are
provided to ease cascading of decoders with little or no external logic.
Features
• High Speed Operation: tpd (A, B, C, D to Y) = 19 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

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HD74HC154 pdf
HD74HC154
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Symbol
Propagation delay tPLH
time
t PHL
VCC (V)
2.0
4.5
6.0
Min Typ Max Min
— — 190 —
— 19 38 —
— — 32 —
Max Unit
240 ns
48
41
2.0 — — 160 — 200
4.5 — 18 32 — 40
6.0 — — 27 — 34
Output rise/fall
time
t TLH
t THL
2.0 — — 75 — 95 ns
4.5 — 5 15 — 19
6.0 — — 13 — 16
Input capacitance Cin — — 5 10 — 10 pF
Test Conditions
A, B, C, D to Y
G1, G2, to Y
5

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