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13.56MHz Multi-Standard NFC Reader

25/03/2022

The BC45B4523 is a single-chip reader ASIC for 13.56MHz NFC/contactless standard protocols, which provides the best solution for near field wireless communication applications such as access control locks, label readers, payment machines. The device supports and compatibles with all major global secured baseband ISO standards including ISO14443 Type A, Type B, Crypto_M cards and Smart label ISO15693. The device provides a highspeed SPI controller/host interface with an integrated 64-byte FIFO for smooth data transfer. Furthermore, the embedded codec is capable of handling all bitlevel coding/decoding, encrypting/decrypting as well as frame-level manipulation for transmission and reception. The device is well suited for mobile devices due to its low power consumption and low operating oltage from 2.7V to 3.6V. The ultra-low power onchip 3.3V regulator is provided to stabilize the device power, and simultaneously supply power of up to 150mA to the external companion microcontroller.

Main Features

  • Operating Voltage:
    - Receiver A_VDD: 2.7V~3.6V
    - Transmitter T_VDD: 2.7V~5.5V
    - Digital I/O IO_VDD: 2.7V~5.5V
  • Operating Temperature: -40°C~85°C
  • Power Saving Modes:
    - Hard Power Down: 0.5μA
    - Soft Power Down: 4.7μA
    - Standby: 1.0mA
    - Support Card Detection mode: 10.4μA @ wakeup period=500ms
  • Up to 10Mbps SPI interface speed
  • 64-byte send and receive FIFO-buffer
    64-byte addressing user-configurable registers
  • Interrupt pin IRQ
  • Programmable timer
  • Low jitter on-chip oscillator buffer
  • Ultra Low Power On-Chip 3.3V Regulator
  • Low Power Card Detection
  • External RF Field Detection
  • Supported Protocols:
    - ISO14443A/B, all bit rates
    -- 106, 212, 424 and 848kbps
    - ISO15693, all modes
    -- Downlink: 1 of 4 and 1 of 256
    -- Uplink: 6.6/13/26/53kbps with 1 sub-carrier
    -- Uplink: 6.6/13/26kbps with 2 sub-carrier
    -- Package: 24-pin QFN
Documents Tech question
Holtek BC45 B4523

13.56MHz Multi-Standard NFC Reader

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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

  • BC45 B4523v120
Pexels thisisengineering 3913017

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