Low voltage latch
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United States of America Patent
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Aug 12, 2003
Grant Date -
N/A
app pub date -
Jun 1, 2001
filing date -
Jun 1, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Low voltage latches are designed such that the latch components are comprised of low threshold transistors. To overcome the effects of leakage current and ensure proper latch operation, according to the invention, the channel widths of the low threshold transistors making up the feedback components of the latch are larger than the channel widths of the low threshold transistors making up the storage components of the latch. Using the method and structure of the invention, the voltage scalability of the latch is significantly increased. One embodiment of the invention allows for minimum supply voltages of around 120 millivolts, an improvement of over six hundred percent compared with the typical prior art minimum voltage requirement of 800 millivolts.
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