The CY14B101PA-SFXI is an integrated SPI interface nvSRAM chip with a built-in RTC clock and independent watchdog timer. It combines high-speed caching, power-off data storage, and timing functions in a single chip, simplifying peripheral circuit design. Equipped with QuantumTrap non-volatile memory cells, it automatically RECALLs data on power-up and performs AutoStore backup via the VCAP capacitor during power loss. Manual storage/restore can also be triggered via SPI commands. The SRAM section has unlimited read/write cycles, while the non-volatile memory supports 1 million cycles and retains data for 20 years without power. It supports SPI modes 0/3, operates at 40MHz standard read/write or 104MHz fast read, with a working current of only 3mA. Its industrial temperature range spans -40℃ to 85℃, and it comes in a 16-pin narrow SOIC package with factory-original tubes, MSL3 moisture sensitivity, and RoHS compliance. Widely used in industrial controllers, smart meters, medical devices, data loggers, and IoT terminals, it eliminates backup battery solutions and overcomes traditional storage limitations such as write-erase cycles and data loss during power outages.