The CLRC66301HN,551 is designed to provide reliable and secure access control and monitoring. It is compliant with the ISO/IEC 14443A standard, and is capable of reading and writing data at a maximum speed of 106Kbps. It also features an integrated antenna, allowing for easy installation and operation.The CLRC66301HN,551 is designed to be highly reliable and secure, with a wide operating temperature range of -40°C to +85°C. It also features a low power consumption of only 0.5mA, making it ideal for battery-powered applications.Overall, the NXP Semiconductors CLRC66301HN,551 is an ideal choice for a wide range of RFID, RF Access, and Monitoring applications. It is designed to provide reliable and secure access control and monitoring, with a wide operating temperature range and low power consumption.