PCF2127 Description
The PCF2127 is a CMOS1 Real Time Clock (RTC) and calendar with an integrated Temperature pensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCF2127 has 512 bytes of general-purpose static RAM, a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and...
PCF2127 Key Features
- UL Recognized ponent
- Operating temperature range from 40 C to +85 C
- Temperature pensated Crystal Oscillator (TCXO) with integrated capacitors
- Typical accuracy
- PCF2127AT: 3 ppm from 15 C to +60 C
- PCF2127T: 3 ppm from 30 C to +80 C
- Integration of a 32.768 kHz quartz crystal and oscillator in the same package
- Provides year, month, day, weekday, hours, minutes, seconds, and leap year correction
- 512 bytes of general-purpose static RAM
- Timestamp function