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How do l design a 2 bit up/down counter using d flip flop? - Quora
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How do l design a 2 bit up/down counter using d flip flop? - Quora
![flipflop - 2 Bit Synchronous circuit that operates only with clock [Q] - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/e3M2R.jpg "flipflop - 2 Bit Synchronous circuit that operates only with clock [Q] - Electrical Engineering Stack Exchange")