- Some useful combinatorial modules
- Some useful sequential modules
- D Flip-Flop
- SR latch implemented with cross-coupled NOR s or NAND s
- D latch implemented with SR
- Registers
- J-K Flip Flop
- Shift registers
- D Flip-Flop
- Edge-triggered flip-flop
- Memories
- rows and columns
- Current technology (Micron 2 Gb DDR3 and Samsung DDR4)
- Cache memories