MC14017BCP 데이터 시트보기 (PDF) - ON Semiconductor

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MC14017BCP

Decade Counter

ON Semiconductor 

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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