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Mạch đếm

Mạch đếm hay Counter là một mạch tích hợp thực hiện đếm và chứa số lần xảy ra sự kiện hoặc quá trình nào đó, thông thường thì có gắn với xung nhịp clock.[1]

Nguyên lý hoạt động

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Mạch đếm thập phân lập bằng JK Flip-flops (74LS112D)

Synchronous Counter

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Synchronous Counter [2]

Asynchronous Counter

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Asynchronous Counter [3]

Các đặc trưng hoạt động

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Ứng dụng

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Tham khảo

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  1. ^ Singh A. K., 2006. Digital Principles Foundation of Circuit Design and Application. New Age Publishers. ISBN 81-224-1759-0.
  2. ^ Synchronous Counter. Electronics Tutorials, 2010. Truy cập 01 Apr 2015.
  3. ^ Asynchronous Counter. Electronics Tutorials, 2010. Truy cập 01 Apr 2015.

Liên kết ngoài

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Mạch đếm
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