1. Adder/ Subtractor
2. Multiplexer/ Demultiplexer
3. Encoder/ Priority Encoder
4. Code Converter
5. Flipflop
6. Shift Register/ Universal Shift Register
7. Comparator
8. Upcounter/ Downcounter
9. Udps
10. Memory – ROM, RAM
11. Array Multiplier/ Array Multiplier With Pipelining
12. Fir Filter/ Fir Filter With Pipelinig