1. CMPE212 Discussion 11/21/2014 Patrick Sykes
Sequential Logic II
CMPE212 Discussion 11/21/2014
Patrick Sykes

2. Other Flip Flops Can be built using D Flip Flop T Flip Flop
Has a toggle input which indicates alternating or non-alternating state.
T xor Q
JK Flip Flop
Combines input behavior of T Flip Flop and SR Latch
J*notQ + notK*Q

3. Counters Each bit of the counter is associated with its own flip flop
Can be designed synchronously, where all circuit elements are connected to a common clock.
Can be asynchronous also. Where each circuit element can activate individually.

4. Synchronous Counter
Let’s design

5. Asynchronous Counter
Let’s design!