1. Implementation of LFSR Counter Using CMOS VLSI Technology

2. Aim of Presentation To reduce the power consumption and delay LFSR using Transmission Gates and Pass Transistors

3. Existing Problems & Proposed System Advancement of LSI –More no of Transistors Heat dissipation, power consumption, time delay LFSR Counter using D FFs- Transmission Gates, Pass Transistors

4. What Is LFSR It is a shift register that, when clocked moves the signal through the register from one flip flop to next. Some of the outputs are combined in exclusive-OR configuration to form a feedback mechanism.

5. Working And Pattern Generation The sequence of numbers generated by a LFSR - a binary numerals As valid Gray code or the natural binary code

6. DESIGN ASPECTS Designed D-flip flop by using following different components NAND Gates. Transmission gates and inverter. Pass transistors.

7. DESIGN WITH NAND GATES LOGIC CIRCUIT

8. LAYOUT IN MICROWINDVOLTAGE Vs TIME P=56.001µWLAYOUT AREA- 13.56x7.44µm

9. DESIGN WITH TRANSMISSION GATES LOGIC CIRCUIT

10. LAYOUT IN MICROWINDVOLTAGE Vs TIME P=19.281µWLAYOUT AREA- 23.22x8.58µm.

11. DESIGN WITH PASS TRANSISTORS LOGIC CIRCUIT

12. LAYOUT IN MICROWINDVOLTAGE Vs TIME P=18.890µWLAYOUT AREA- 25.98x7.68µm.

13. Comparison of lfsr in different nm TECHNOLOGIES

14. CONCLUSION This paper concludes that LFSR counter is best implemented using the pass transistors. Thus LFSR implemented in CMOS chip technology, is the best illustration of VLSI.