Level shifting circuit, apparatus and method of operating the same

A level shifting apparatus comprising:

• a leakage divider connected to an upshifted logically high voltage;
• a skew inverter connected to the upshifted logically high voltage;
• an input region connected to the leakage divider and the skew inverter, wherein
• the input region is further connected to a non-upshifted logically low voltage and an upshifted logically low voltage lower than the upshifted logically high voltage, and
• the input region is configured to control a leakage current of the leakage divider;
• and
• a buffering element connected to an output of the skew inverter, wherein the level shifting apparatus is free of capacitors.

A method of level shifting a signal, the method comprising:

• receiving an input signal, a first voltage, and a second voltage at an input region of a level shifting circuit;
• receiving a third voltage with a leakage divider of the level shifting circuit, the third voltage having a value above values of the first voltage and the second voltage;
• based on the input signal, controlling a leakage current of the leakage divider;
• receiving an output of the leakage divider with a skew inverter of the level shifting circuit;
• and
• based on the output of the leakage divider, generating an upshifted version of the input signal at an output of the skew inverter.