The BC45B4523 is a multi-standard NFC reader. It provides solutions for near-field wireless communication applications, such as access control locks, label readers, payment machines, etc.
It has a transmission frequency of 13.56MHz, which supports ISO14443A, ISO14443B, and ISO15693 protocols, and also includes Crypto_M encrypting/decrypting functions.
Its RF output current is up to 250mA and includes a Low-Power Mode for automatic card detection. A 3.3V LDO with a maximum output current of 150mA is fully integrated into the MCU.