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MC14017B Ver la hoja de datos (PDF) - ON Semiconductor

Número de piezacomponentes Descripciónfabricante
MC14017B Decade Counter ON-Semiconductor
ON Semiconductor ON-Semiconductor
MC14017B Datasheet PDF : 8 Pages
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MC14017B
APPLICATIONS INFORMATION
Figure 3 shows a technique for extending the number of decoded output states for the MC14017B. Decoded outputs are
sequential within each stage and from stage to stage, with no dead time (except propagation delay).
CLOCK
RESET
CLOCK
CE MC14017B
Q0 Q1 • • • Q8 Q9
9 DECODED
OUTPUTS
RESET
CLOCK
CE MC14017B
Q0Q1 • • • Q8 Q9
8 DECODED
OUTPUTS
FIRST STAGE
INTERMEDIATE STAGES
Figure 3. Counter Expansion
RESET
CLOCK
CE MC14017B
Q1 • • • Q8 Q9
8 DECODED
OUTPUTS
LAST STAGE
Pcp
CLOCK
CLOCK
ENABLE
trem
RESET
20 ns
Q0
Ncp
tPHL
trem
20 ns
tsu
20 ns
20 ns
tPLH
tPLH
tPHL
Q1
tPLH
tPHL
Q2
tPLH
tPHL
50%
Q3
tPLH
tPHL
90%
10%
tTLH
tTLH
Q4
tPLH
tPHL
Q5
Q6
Q7
Q8
Q9
Cout
tPLH
10%
tTHL
tPLH
tPHL
90%
tTHL
tPHL
tTHL
tPLH
tTLH
tTHL
tPLH
tPHL
tTLH
tPLH
tPHL
tTHL
20 ns
90%
10%
50%
VDD
VSS
VDD
20 ns
tPLH
VSS
VDD
VSS
VOH
tTLH VOL
50%
tTHL
tTHL
VOH
VOL
VOH
VOL
VOH
tTLH
tTLH
tTHL
tTHL
tTLH
VOL
tPHL
tTHL
VOH
VOL
VOH
VOL
VOH
VOL
VOH
VOL
VOH
VOL
VOH
VOL
tPHL
VOH
tTLH
tTHL VOL
Figure 4. AC Measurement Definition and Functional Waveforms
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