A 1T (or 2T) SRAM Bit Cell
Significant Change to SRAM Economics?
There are few semiconductor circuits as constant as the SRAM cell. Until now.
SRAM is important because it’s our fastest-performance memory tier – and it can take up a goodly chunk of your SoC area. But it’s an expensive beast (or else we’d use even more). For as long as I can recall, the basic reference circuit of the SRAM bit has stayed the same. It costs six transistors, arranged as a couple of back-to-back inverters with cross-coupling feedback to hold the state.