In a 4 bit ripple counter using flip flops with tpd = 40 ns, the maxim – McqOptions

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1.	In a 4 bit ripple counter using flip flops with tpd = 40 ns, the maximum frequency can be
A.	1.25 MHz
B.	3.25 MHz
C.	6.25 MHz
D.	12.5 MHz
Answer» D. 12.5 MHz

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