NXP Semiconductors PCF2131 Nano-Power Highly Accurate RTC

https://www.electronics-lab.com/nxp-semiconductors-pcf2131-nano-power-highly-accurate-rtc/

NXP Semiconductors PCF2131 Nano-Power Highly Accurate Real-Time Clock (RTC) features an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768kHz quartz crystal. The PCF2131 is optimized for very high accuracy and ultra-low power consumption. The PCF2131 offers a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, four timestamps function, […]