The PN5321A3HN/C106,55 is a Near Field Communication Controller manufactured by NXP. It features an ultra-low power architecture and is designed for devices in smart phones, tablets, payment solutions, home entertainment systems, digital cameras, point of sale/kiosk systems, and others. The controller is 40-Pin HVQFN EP Tray. It supports reader/writer and peer-to-peer communication protocol, sending and receiving data up to 424Kbits/s. Additionally, it features various security settings, including encryption, authentication, purpose control, and more, to ensure the secure transfer of data.