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New NFC Reader Controller

10/11/2023

The BC45B4522 provides an excellent solution for near field communication applications such as access control locks, tag readers, payment machines, etc.

The device is a 13.56MHz RFID reader controller which supports ISO14443A and ISO14443B protocols and also includes Crypto_M encryption/decryption functions. It provides transmission bit rates of 106, 212, 424 and 848kbps. By supporting multiple protocols the device is able to work with a range of NFC Tag types.

It provides an RF output current of up to 230mA which increases the sensing distance and also includes a low power mode for automatic card detection. To meet the needs of a wide variety of external control the device includes fully integrated SPI, I²C and UART interfaces. With regard to packaging, the device is supplied in a 32-pin QFN package type. These combined features will ensure that this new device meets the needs of a wide range of near field wireless communication applications.

Main Features

  • Highly integrated analog circuits for demodulation and decoding
  • Operating voltage range: 2.3V~5.5V
  • Ultra low power consumption, typical communication distance up to 10cm depending on antenna size
  • Supports ISO/IEC 14443 TypeA/TypeB protocols
  • Supports ISO 14443 A, B high transfer speed of 106kbit/s, 212kbit/s, 424kbit/s and 848kbit/s
  • Supports MFIN/MFOUT
  • Supported host interfaces
    - SPI interface up to 10Mbit/s
    - I²C interface up to 400kbit/s
    - Serial UART up to 1228.8kbit/s
Documents Tech question
Holtek BC45 B4522 NFC

New NFC Reader Controller

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Holtek

Holtek Semiconductor is a leading professional IC design house in Taiwan having its major business activities focused in the area of microcontroller and peripheral component design.

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Documents

  • Holtek BC45 B4522v100 Datasheet
Pexels thisisengineering 3913017

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