Epson has introduced a ±20ppm (25°C, 12pF) 32.768kHz crystals in 2 x 1.2mm (FC2012AN) packaging. ESR is typically 35kΩ at 25°C. Operation is over -40 to +105°C, with ESR typically 50kΩ max -40 to +85°C in the smaller size, and 60kΩ max -40 to +105°C. Consumption is 319nA in a given situation, compared to 395nA ...
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