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US 7,095,255 B2Granted
Ultra-drowsy circuit
AssigneeIntel Corporation
InventorMark E. Schuelein
Life of this patent
Estimating the term…
Abstract
Method and apparatus for an ultra-drowsy circuit for use in lower power operational modes are described.
Claims17
A circuit, comprising:
- a first and second pull-up transistors, said first pull-up transistor having a source coupled to a first power supply and a drain to output a first output signal, and said second pull-up transistor having a source coupled to said first power supply and a drain to output a second output signal, with said first output signal comprising an inverse of said second output signal;
- a set of four transistors arranged as a pair of cross coupled inverters which are coupled to a second power supply and a third power supply;
- first and second pass gate transistors, with each pass gate transistor having a gate to receive an input signal, with said first pass gate transistor having a source coupled to said drain for said first pull-up transistor and a drain coupled to said cross coupled inverters, and said second pass gate transistor having a source coupled to said drain for said second pull-up transistor and a drain coupled to said cross coupled inverters;
- and
- a power gate transistor having a gate coupled to said input signal, a drain coupled to said cross coupled inverters, and a source coupled to said second power supply.
2 more elements
A system, comprising:
- an antenna;
- a wireless node to couple to said antenna, said wireless node having a power reduction mode to reduce power to a memory element, said memory element comprising an ultra-drowsy state retention circuit comprising:
- a first and second pull-up transistors, said first pull-up transistor having a source coupled to a first power supply and a drain to output a first output signal, and said second pull-up transistor having a source coupled to said first power supply and a drain to output a second output sipnal;
- a set of four transistors arranged as a pair of cross coupled inverters which are coupled to a second power supply and a third power supply;
- first and second pass gate transistors, with each pass gate transistor having a gate to receive an input signal, with said first pass gate transistor having a source coupled to said drain for said first pull-up transistor and a drain coupled to said cross coupled inverters, and said second pass gate transistor having a source coupled to said drain for said second pull-up transistor and a drain coupled to said cross coupled inverters;
- and
- a power gate transistor having a gate coupled to said input signal, a drain coupled to said cross coupled inverters, and a source coupled to said second power supply.
4 more elements
Dependencies are inferred from the claim text.