4-bit Grey Code Converter with Counter
• Lincoln Chin
• Dat Tran
• Thao Nguyen
• Tien Huynh
Specifications
Function• Convert from binary to grey
code
• Count from binary 0-15
• Run with 200MHz Clock• Load capacitance of 50fF• Power = • Area = (388 x 245)um^2 =
95060 um^2
Design Flow
Design Converter• Truth Table• K-maps• XOR
4 input converter
4 output converter
Design Counter• Flip Flop• XOR
4 input counter
4 output counter
Flow Chart
Counter
DFFDFF
DFFXOR DFF
XOR
XOR
XOR
Converter
XOR
XOR
XOR
DFF Timing Delay Fall Time
DFF Timing Delay Rise Time
Converter Schematic
Converter Test Vectors
Counter Schematic
Counter Test Vectors
Binary to Grey code Converter Layout
Binary to Grey code Converter Post Extracted Layout
Binary to Grey Code Converter Test Vectors
DFF LVS Counter LVS
Binary to Grey code Converter LVS Grey Code Converter LVS
Conclusion
Our circuit should• Run with a 200M Hz clock• Have a load capacitance of 50fF• Convert from binary to grey code correctly
Our 4-bit grey code converter with converter is functional.