RTC and 32.768kHz Clocks
Simple oscillator to full function RTC
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.
ASIC Oscillator IC| Series | Description | VC America Recommendations | Status |  Datasheets |
|---|---|---|---|---|
| CF7290A | 32.768 kHz <±50ppm 1.5~3.63V Low 1µA current using tuning fork crystal -40°C to 105°C operation | -40°C to 105°C operation | Active | WF7290A.pdf |
| CF7202H | ✅ 32.768 kHz 7µA 1.6~3.63V <±50ppm using AT-Cut crystal and operation to 125°C | Specified 125°C: some versions operate >200°C | Active | CF7202H.pdf |
