A 256kb 6T self-tuning SRAM with extended 0.38V–1.2V operating range using multiple read/write assists and VMIN tracking canary sensors

A closed loop self-tuning 256kb 6T SRAM with 0.38V-1.2V extended operating range using combined read and write assists and canary-based V MIN tracking is presented. 337X and 4.3X power reductions are achieved using multiple assists and VMIN tracking, respectively; combining both saves 1444X in active power and 12.4X in leakage at the 0.38V.