RTC and 32.768kHz Clocks

32.768kHz oscillators with a wide range of current (<1µA to<400µA) and temperature stability (up to -40 to 105°C) offer designers opportunity to match requirements closely. -40 to 85°C temperature range AT-Cut quartz solutions achieve <50ppm over -40 to 85°C; IC's with EEPROM and Tuning fork or AT-Cut crystals achieve stabilities ≤5ppm.
SeriesDescriptionVC America
Recommendations
StatusDatasheets
8592HRTC I2 C-bus*1 Full feature/function clock IC 3ppm accuracy over temperatureVCA support programmingActiveRequest
720232.768 kHz <±50ppm 1.6~3.63V Low 7µA current using AT-Cut crystal and operation to 125°CActivePDF7202.pdf
5095Exceptional frequency stability over wide temperature range 32.768 kHz IC, compensated by EEPROM programming to ±10ppm -10°C to 60°C
or ±7ppm -40°C to 105°C
Use 7290ActivePDF5095.pdf
509132.768 kHz IC low 1 µA current, tuning fork and frequency adjust to improve accuracy and yieldstuning fork solution
with excellent 25°C tolerance
ActivePDF5091.pdf
5059H32.768 kHz <±50ppm 1.6~5.5V 60-70µA current and operation to 125°CGood 125°C + operationActivePDF5059H.pdf
502932.768 kHz <±50ppm 2.25-3.6V 300-400µA currentNew designs 5059H or
7202
ActivePDF5029.pdf
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