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Draw the logic diagram of 4-bit Twisted Ring counters and explain its operation with the help of timing diagram.
Ans:
Twisted ring counter (4 BIT): We ready know that shift registers can function in 4 various modes, which are SISO, SIPO, PISO and PIPO.
Subsequent is the 4 BIT register which can function in any of the mode. If Q0 is applied to the serial input, the resulting circuit is termed as twisted ring or Johnson Counter. Square wave form is acquired at the Q output, if the clock pulse is applied after clearing the Flip Flops.
The logic diagram of 4-bit Twisted Ring counter
Wave from u bit Twiest ring counter
Two input AND Gates are essential for decoding the count, Decoding logic for 4 stage twisted ring counter are as:
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