What we know until know
R S Qn+1
0 0 Qn
0 1 1
1 0 0
1 1 X
Simplest Memory Element
Crown Jewel
First Attempt
Time Constant = 1ms
Second Attempt - Buffer
Time Constant = 2ms
Third Attempt – Buffer + Refresh
Trickle Switch
Trickle Switch
Buliding D Latch
Undefined States at 0,0
0 0
1 1
1
0
0
0
Negative Edge Triggered D Flip-Flop
Building a DRAM flip flop using capacitive storing element

Building a DRAM flip flop using capacitive storing element