Ultra dense and stable 4T SRAM cell design having NFETs and PFETs
摘要:
Ultra dense and stable 4T SRAM designs are provided. In one aspect, a 4T SRAM bitcell includes: two NFETs cross-coupled with two PFETs, wherein the NFETs are both connected directly to a word line, wherein a first one of the PFETs is connected to a first bit line via a first one of the NFETs and a second one of the PFETs is connected to a second bit line via a second one of the NFETs, and wherein the PFETs are each separately connected to ground. An SRAM device including the present 4T SRAM bitcell as well as a method of operating the SRAM device are also provided.
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