Semiconductor device having level shifter

摘要

Disclosed herein is a semiconductor device that includes: an internal voltage generator configured to produce an internal voltage in a first mode and stop producing the internal voltage in a second mode; a level shifter configured to receive the internal voltage, a first voltage and a first signal, in order to convert the first signal from a voltage level of internal voltage to a voltage level of the first voltage and output the first signal with the voltage level of the first voltage; and a logic circuit configured to produce the first signal, the logic circuit being supplied with the internal voltage in the first mode and supplied with the first voltage in the second mode.

主权项

1. A semiconductor device comprising:
a first circuit configured to generate, when a control signal is at a first level, an internal potential based on a first power-supply potential and to supply the internal potential to an internal node, and stops generating the internal potential when the control signal is at a second level different from the first level; a second circuit configured to supply a second power-supply potential to the internal node when the control signal is at the second level; and a third circuit operating on a potential supplied from the internal node to generate an output signal, the third circuit being configured to maintain a logical level of the output signal when the potential supplied from the internal node is changed from the internal potential to the second power-supply potential.