13.4 A 7ns-access-time 25μW/MHz 128kb SRAM for low-power fast wake-up MCU in 65nm CMOS with 27fA/b retention current. - Toshikazu Fukuda; Koji Kohara; Toshiaki Dozaka; Yasuhisa Takeyama; Tsuyoshi Midorikawa; Kenji Hashimoto; Ichiro Wakiyama; Shinji Miyano; Takehiko Hojo (ISSCC, 2014)