Memory Circuits/Latches

Hello, it's tHeRePeater. Again.

T Flip-Flop

My new best friend. In essence, a mechanism that turns a button into a lever. If you've hit the button an odd number of times, then the whatever will be ON. If a even number, it will be OFF. The 2x2 Non-Sticky piston door that I would like to say I made but can't so someone doesn't get mad at me because I "copied" them uses this, actually it needs it.

RS NOR Latch

Easy Peasy. Two buttons:  Set and reset. When you hit set, your whatever is ON. Forever. If you hit reset, then your whatever is OFF. Forever.

RS NAND Latch

Opposite of RS NOR. If set is ON, the whatever is OFF, and vice versa.

D Flip-Flop

Not too hard. A button and a lever. You flip a lever one way or the other, then hit the button. Fliping the lever alone won't do anything: the button basically "submits" your decision. If the lever is ON, and you hit the button, the output is ON, and vice versa when the lever is OFF.

JK Flip-Flop

The flip-flop that can do the most by far. There are two levers, lets call them J and K (hence the name). If J and K are OFF then the whatever stays the same. If J and K are both ON, then it acts like a T flip-flop and toggles (if it was ON, then it's now OFF and vice versa). If J is ON and K is OFF, then the whatever is ON. If the opposite, it is OFF. This can be used for a multitude of things:  if both are OFF is can serve as a D flip flop. If both are ON, then it can act as a T flip-flop. And it can act a regular lever! But since every time you flip it, something happens, it can be a bit messy and hard to use, so experiment with it.