l7_ripple-counter.pdf - 1 E1122 DIGITAL LOGIC(B SPRING 2018...

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E1122 DIGITAL LOGIC (B) SPRING 2018 Lecture 7 Ripple counter 1
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2 Sequential Circuit Introduction to Counter Asynchronous Counter - Ripple Asynchronous Down Counter
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3 Sequential Circuit: Counter Counters are sequential circuits which "count" through a specific state sequence. They can count up , count down , or count through other fixed sequences . Two types of counter Synchronous counter (e.g. parallel) Asynchronous counter (e.g. ripple) Ripple counter let some flip-flop output to be used as clock signal source for other flip-flop Synchronous counter use the same clock signal for all flip-flop
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