Oscillators

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!..

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated 18 pF capacitance and +/- 50ppm stability. Low profile HC49/US Package. 12MHz is good for use with devices that need USB. ..

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated 18 pF capacitance and +/- 50ppm stability. Low profile HC49/US Package. 12MHz is good for use with devices that need USB. ..

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated 18 pF capacitance and +/- 50ppm stability. Low profile HC49/US Package. 12MHz is good for use with devices that need USB. ..

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated 18 pF capacitance and +/- 50ppm stability. Low profile HC49/US Package. 12MHz is good for use with devices that need USB. ..

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated 18 pF capacitance and +/- 50ppm stability. Low profile HC49/US Package. 12MHz is good for use with devices that need USB. ..