4-bit Grey Code Converter with Counter

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4-bit Grey Code Converter with Counter

• Lincoln Chin
• Dat Tran
• Thao Nguyen
• Tien Huynh

2
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)um2 95060 um2

3
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

4
Flow Chart
Counter
Converter
XOR
XOR
XOR
DFF
DFF
XOR
XOR
XOR
DFF
DFF
XOR
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DFF Layout
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DFF Timing Delay Fall Time
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DFF Timing Delay Rise Time
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Converter Schematic
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Converter Layout
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Converter Test Vectors
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Counter Schematic
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Counter Layout
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Counter Test Vectors
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Binary to Grey code Converter Layout
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Binary to Grey code Converter Post Extracted
Layout
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Binary to Grey Code Converter Test Vectors
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DFF LVS
Counter LVS
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Binary to Grey code Converter LVS Grey
Code Converter LVS
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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.