BC45B4211 Datasheet | Holtek Semiconductor

V11/25 RFID NFC Type 2 Tag IC with I2C Interface and Energy Harvesting Revision: V1.00 Date: September 04, 2025 BC45B4211 RFID NFC Type 2 Tag IC with I2C Interface and Energy Harvesting Features - patible with ISO/IEC 14443A standard - NFC Forum Type 2 Tag pliant - Cascaded two level 7-byte serial number - Get Version mand supported - 50p F resonant capacitance - I2C slave - Configurable FD (Field Detector) pin for open drain output - Pass-through mode with 64-byte SRAM buffer - FWRITE and FREAD mands for NFC higher data throughput - Full access, read only or no read/write access configured by setting AUTH0 and 32-bit password and related protection bits - Energy harvesting from NFC field, also provide DC supply output to external logic devices - 13.56MHz operating frequency - 100% ASK demodulator from NFC - 106kbps data rate from NFC - Manchester encoding TX data output from NFC - ECC based originality check signature Memory - 1K bytes of EEPROM none-volatile memory - 64 bytes of SRAM buffer for data transfer between NFC and I2C - 4 bytes of OTP user memory in Page 03 from NFC interface - Each page is organized in 4 bytes for NFC interface - Each block is organized in 16 bytes for I2C interface - Data retention up to 20 years - Write endurance time is up to 100,000 cycles I2C...