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Crystal 32kHz
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 Crystal 32kHzCrystal 32kHz 

Crystal 32kHz

  (1 Review)
Our Price:  £0.77 

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SKU:  PPCOM-00540
Part Number:  COM-00540
Brand:  SparkFun


Standard ‘Watch’ or Real-Time-Clock crystal. 32.768kHz means it is precisely half of a 16-bit counter. Start counting at 0x8000 (or 32768). When the counter rolls over from 65535 to 0, then you know that exactly one second has passed. Reset the interrupt, reset the counter, and start counting again! Rated at 12.5pF load capacitance, 35K ohm max (18K ohm typical) series resistance, and +/- 20ppm stability. Small cylinder package.


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Customer Reviews
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quite large
Wednesday, 11 February 2015  |  Julian

Too big to fit in the space given on the bottom of a Teensy3.1, so has to be soldered on the top side where it's exposed and looks a bit daft.

 

2 of 2 people found this review helpful.