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ST21NFCLAL0LA9

NFC Controller

CoreST21
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantN/A
GradeIndustrial
Package NameWLCSP

The ST21NFCL is a contactless front-end (CLF) based on Arm® core and designed for integration in mobile devices and NFC-compliant products.The ST21NFCL performs near-field communication (NFC) functions in the three operating modes: card emulation, reader/writer and peer-to-peer communication. It...
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Key features
    • NFC controller available in WLCSP49 and WLCSP90, ECOPACK-compliant packages
  • NFC controller
    • Arm® Cortex®-M3 microcontroller
    • 100% re-flashing capability for firmware update
    • Enhanced active load modulation technology
    • Enhanced Tx drive up to 2W
    • Support of external DC/DC up to 5.5 V
    • Highest output power with optimized power transfer
    • Optimized for extremely small or metal frame antennas
    • Optimized low-power consumption modes
    • Selectable ultralow power hibernate state
    • Battery voltage monitoring
    • Proprietary in-frame synchronization (IFS) in card emulation (CE) to ensure stability in battery low and switched off modes
    • Improved XOR mode on all technologies
    • OOFS with external reference clock in CE
    • System clock
      • Fractional-N PLL input range of 19.2 to 76.8 MHz

      • Support of multiple external crystal oscillator (27.12 MHz and 54.24 MHz)

    • 32.768 kHz, 16MHz and 32MHz support for EMC tests
    • Automatic wakeup via communication interfaces, GPIO, RF field or tag detection and power supply detection
  • RF communications
    • Active and passive peer-to-peer
      • ISO/IEC 18092 - NFCIP-1 initiator and target

    • Reader/writer mode
      • NFC ForumTM Type 1/2/3/4/5 tags

      • FeliCaTM

      • ISO/IEC 15693

      • MIFARE®1

    • Card emulation mode
      • ISO/IEC 14443 Type A & B

      • FeliCaTM

      • Intelligent card switching

      • MIFARE®

  • Communication interfaces
    • Up to three I3C interfaces depending on the package
    • Up to two SPI interfaces depending on the package
    • I2C interface supporting standard, fast, and fast+ modes
    • GPIOs
  • Electrical characteristics
    • Battery voltage support from 2.4 V to 5.1 V
    • I/O dedicated voltage level (VPS_IO): 1.2 V and 1.8 V compatibility
    • Supports Class B and C operating conditions for UICC – Class D ready
    • Ambient operating temperature -30 to + 85 °C
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Quantity $ per unit Savings
1-500$0.000%
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CoreST21
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantN/A
GradeIndustrial
Package NameWLCSP

The ST21NFCL is a contactless front-end (CLF) based on Arm® core and designed for integration in mobile devices and NFC-compliant products.The ST21NFCL performs near-field communication (NFC) functions in the three operating modes: card emulation, reader/writer and peer-to-peer communication. It...
Read More

Key features
    • NFC controller available in WLCSP49 and WLCSP90, ECOPACK-compliant packages
  • NFC controller
    • Arm® Cortex®-M3 microcontroller
    • 100% re-flashing capability for firmware update
    • Enhanced active load modulation technology
    • Enhanced Tx drive up to 2W
    • Support of external DC/DC up to 5.5 V
    • Highest output power with optimized power transfer
    • Optimized for extremely small or metal frame antennas
    • Optimized low-power consumption modes
    • Selectable ultralow power hibernate state
    • Battery voltage monitoring
    • Proprietary in-frame synchronization (IFS) in card emulation (CE) to ensure stability in battery low and switched off modes
    • Improved XOR mode on all technologies
    • OOFS with external reference clock in CE
    • System clock
      • Fractional-N PLL input range of 19.2 to 76.8 MHz

      • Support of multiple external crystal oscillator (27.12 MHz and 54.24 MHz)

    • 32.768 kHz, 16MHz and 32MHz support for EMC tests
    • Automatic wakeup via communication interfaces, GPIO, RF field or tag detection and power supply detection
  • RF communications
    • Active and passive peer-to-peer
      • ISO/IEC 18092 - NFCIP-1 initiator and target

    • Reader/writer mode
      • NFC ForumTM Type 1/2/3/4/5 tags

      • FeliCaTM

      • ISO/IEC 15693

      • MIFARE®1

    • Card emulation mode
      • ISO/IEC 14443 Type A & B

      • FeliCaTM

      • Intelligent card switching

      • MIFARE®

  • Communication interfaces
    • Up to three I3C interfaces depending on the package
    • Up to two SPI interfaces depending on the package
    • I2C interface supporting standard, fast, and fast+ modes
    • GPIOs
  • Electrical characteristics
    • Battery voltage support from 2.4 V to 5.1 V
    • I/O dedicated voltage level (VPS_IO): 1.2 V and 1.8 V compatibility
    • Supports Class B and C operating conditions for UICC – Class D ready
    • Ambient operating temperature -30 to + 85 °C