Ultra low power SRAM cell circuit with a supply feedback loop for near and sub threshold operation

  • A. Teman (Inventor)
  • , L Pergament (Inventor)
  • , O Cohen (Inventor)

Research output: Patent

Abstract

An SRAM memory cell with an internal supply feedback loop is provided herein. The memory cell includes a latch that has a storage node Q, a storage node QB, a supply node, and a ground node. The supply node is coupled via a gating device to a supply voltage and ground node is connected to ground. In addition, storage node Q is fed back via feedback loop into a control node of the gating device. In operation, writing into the memory cell may be carried out in a similar manner to dual port SRAM cells, utilizing one or two write circuitries and for writing into storage node Q and storage node QB respectively. Differently from standard SRAM cells, the feedback loop, by controlling the gating device is configured to weaken the write contention.
Original languageAmerican English
Patent number8,531,873
StatePublished - 2013

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