Semiconductor device
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United States of America Patent
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Jun 29, 2010
Grant Date -
Jan 1, 2009
app pub date -
Jun 26, 2008
filing date -
Jun 29, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A level shifter circuit of the present invention includes a level shifter for converting a low-voltage signal to a high-voltage signal, and is provided with a unit that sets a voltage condition of an input signal to a transistor for input of the level shifter, when a high-voltage power supply is inputted to the level shifter circuit of the present invention before a low-voltage power supply.
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