Patent ID: 8587359
Filing Date: 2013-11-19
Classification: H03K

Abstract:
1. A device comprising: a power input to couple to a first power voltage of a first power domain; a power output to couple to a second power voltage of a second power domain; an input to receive a logic signal having a first level consistent with the first power domain; an output to provide a level-shifted logic signal output having a second level consistent with the second power domain; a voltage detection circuit coupled to the second power domain; a latch operable to selectively latch, in response to receiving an enable signal received from the voltage detection circuit, the level-shifted logic signal output such that, in response to a change in the enable signal from a first value to a second value, the level-shifted logic signal output that exists just prior to or at a time the enable signal changes to the second value is held at the output while the enable signal has the second value; and the voltage detection circuit operable to: