A 2 Hz, 1.2-2 V, 0.22-9 nW, 0.007 mm2 65 nm CMOS Multiple- Output Down-Converter-Less Clock Generator Using Stacked an Oscillator and Frequency Dividers for Scaling-Friendly IoTs. - You Wu; Kei Awano; Kento Okamura; Teruaki Ono; Kohei Sakamoto; Hiroaki Kitaike; Hironori Tagawa; Jin Nakamura; Masaya Kaneko; Yuta Kimura; Hiroaki Nakamura; Shufan Xu; et al. (NorCAS, 2024)