counter and shift registers

Thread Starter

vead

Joined Nov 24, 2011
629
i have read text book and I want to confirm my doubt



shift register

look the serial in serial out shift register using Jk flip flop


http://www.allaboutcircuits.com/vol_4/chpt_12/2.html

output of one filp flop is input for another flip flop

Type JK FFs cascaded Q to J, Q' to K with clocks


up counter


look at counter with jk flip flop


output of each flip flop is connected to the clock of next flip flop

http://www.allaboutcircuits.com/vol_4/chpt_11/2.html

output of each flip flop is connected to the clock of next flip flop



when we design circuit using flip flop
If output of one filp flop is input for another flip flop then it can be shift register


if output of each flip flop is connected to the clock of next flip flop


is it correct difference ?




 

tshuck

Joined Oct 18, 2012
3,534
This is only true for ripple counters, which, in most cases, are considered poor design.

To be a shift register, it must be connected in such a way as to perform a shift operation.
 
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