The NXP USA Inc. PCA2131TF-Q900Y is a Real Time Clock (RTC) integrated circuit designed for applications demanding precise timekeeping. This component features an integrated crystal oscillator and an automatic hardware watchdog timer, ensuring reliable operation even during power interruptions with its battery backup functionality. The PCA2131TF-Q900Y is supplied in a Tape & Reel (TR) package, supporting high-volume manufacturing processes. Its robust design makes it suitable for deployment in industrial automation, automotive systems, and consumer electronics where accurate temporal data is critical. This device offers essential timekeeping capabilities with enhanced reliability features.