EnerChip RTC CBC34803 with I2C bus
- 120 hours of power holdover/charge Ultra-low power Ambiq Micro AM0803 I2C bus RTC with integrated 5uAh (Lifecycle Capacity =2.5mAh) rechargeable solid state battery with integrated power management in a 5 mm x 5 mm x 1.4 mm 16 pin square SMT/reflow solder plastic QFN package |
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EnerChip RTC CBC34123 with SPI bus
- 30 hours of power holdover/charge Popular NXP PCF2123 SPI bus RTC with integrated 5uAh (Lifecycle Capacity =2.5mAh) rechargeable solid state battery with integrated power management in a 5 mm x 5 mm x 1.4 mm 16 pin square SMT/reflow solder plastic QFN package |