Method and output buffer with programmable bias to accommodate multiple supply voltages
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Dec 9, 1997
filing date -
Dec 9, 1997
priority date (Note) -
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Abstract
Output buffer (100) translates input signals from one voltage range to a second voltage range. The second voltage range may be identical to the first range or may be greater. The particular range is programmable by one of several ways. This feature makes output buffer especially suitable for use in devices which must be compatible with two voltage ranges. Output buffer uses a bias generator (110) to limit the voltage across the gate oxide of its various transistors to a level which is consistent with the first voltage range.
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