Electronic digital logic circuitry – Interface – Logic level shifting
Reexamination Certificate
2005-03-08
2005-03-08
Tan, Vibol (Department: 2819)
Electronic digital logic circuitry
Interface
Logic level shifting
C326S062000, C326S081000, C326S083000, C327S333000
Reexamination Certificate
active
06864718
ABSTRACT:
Recent efforts are underway to develop LSI circuits that operate at power supply voltages of 1-V or lower. It is a desire that this low core voltage circuits interface to 3.3-V I/O supply. A charge pump level converter for dual power supply application is proposed using low power and high speed interface to higher I/O supply. This circuit does not consume DC power it is suitable for low power and high speed interface and can be implemented using complementary metal-oxide-semiconductor (CMOS) fabrication processes.
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Chen Howard
Taiwan Semiconductor Manufacturing Company
Tan Vibol
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