Best references for learning circuits, flip-flops and counters

[praveena]

Hai pf,

Can anyone suggest me what are best referrences to design & study about circuits. In case of designing ICchips also?
studying about flipflops,counter. they are still confusing? if anyone had an idea please suggest me easy way to understand their workings?
thanks in advance.

 

[Greg Bernhardt]

This is one of the best reference sites for circuits
http://www.allaboutcircuits.com/