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Número de pieza
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M74HC390B1R Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Lista de partido
M74HC390B1R
Dual decade counter
STMicroelectronics
M74HC390B1R Datasheet PDF : 17 Pages
First
Prev
11
12
13
14
15
16
17
Test circuit
8
Test circuit
Figure 7. Test circuit
M74HC390
Note:
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
T
= Z
OUT
of pulse generator (typically 50
Ω
)
9
Waveforms
Figure 8. Clock waveform
(f = 1MHz; 50% duty cycle)
12/17
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