SiTime
Smallest Footprint (1.2mm2), Ultra-Low Power 32.768 kHz Oscillator In CSP For Single-Cell Li+ Unregulated Battery Powered Applications, DC-Coupled Output V OH - 1.10V, DC-Coupled Output VOL Or AC Swing - Rail-To-Rail LVCMOS, Packaging - 8 mm Tape & Reel, 10ku Reel