32.768kHz Clock Oscillators

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
8592RTC I2 C-bus*1 full feature/function clock IC 3ppm accuracy over temperature✅ Best of Class ❗ActivePDF8592.pdf
8591RTC I2 C-bus*1 full function clock IC temperature compensatedContact VC AmericaActive
7202H32.768 kHz <±50ppm 1.6~3.63V Low 7µA current using AT-Cut crystal and operation to 125°C✅ Best of Class ❗Active
5095Exceptional frequency stability over wide temperature range 32.768 kHz IC,

compensated by EEPROM programming to

±10ppm -10°C to 60°C

±7ppm -40°C to 105°C

✅ Best of Class ❗ for power
and temperature stability
ActivePDF5095.pdf
509132.768 kHz IC low 1 µA current, tuning fork and frequency adjust to improve accuracy and yields✅ tuning fork solution
with excellent 25°C tolerance
ActivePDF5091.pdf
5059H32.768 kHz <±50ppm 1.6~5.5V 60-70µA current and operation to 125°C✅ Good 125°C consider 7202H
for lower power and 1.6-3.63V
ActivePDF5059H.pdf
502932.768 kHz <±50ppm 2.25-3.6V 300-400µA currentNew Designs: 5059H and 7202HActivePDF5029.pdf
NR8576RTC(crystal included) in SO-14 and serial interfaceActiveActivePDFNR8576.pdf
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  1. CF5029A
    CF5029A

    Starting at $1.13

  2. CF5059HBA
    CF5059HBA

    Starting at $0.63

  3. CF5059HBB
    CF5059HBB

    Starting at $0.67

  4. CF5059HCA
    CF5059HCA

    Starting at $0.62

  5. CF5059HCB
    CF5059HCB

    Starting at $0.66

  6. CF5091A
    CF5091A

    Starting at $1.57

  7. CF7202HC1A
    CF7202HC1A

    Starting at $0.73

  8. CF7202HC3A
    CF7202HC3A

    Starting at $0.73

  9. CF8591CA-4
    CF8591CA-4

    Starting at $1.60

  10. CF8592A-4
    CF8592A-4

    Starting at $1.60

  11. NR8576AA
    NR8576AA

    Starting at $3.01

  12. NR8576AB
    NR8576AB

    Starting at $3.01

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