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ST25R3917B-AQET - STMicroelectronics

Description: NFC reader for payment, consumer and industrial applications

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ST25R3917B-AQET - STMicroelectronics - PCB symbol
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PCB Footprints
ST25R3917B-AQET - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - VFQFPN32 package
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3D Models
ST25R3917B-AQET - STMicroelectronics - 3D model - Quad Flat No-Lead - VFQFPN32 package
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ST25R3917B-AQET Details

  • Manufacturer Part Number:

    ST25R3917B-AQET

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    UFQFPN-32

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.30

  • Factory Lead Time:

    10 Weeks

  • Manufacturer:

    STMicroelectronics

  • JESD-30 Code:

    S-XQCC-N32

  • Length:

    5 mm

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.6 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.6 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

  • uPs/uCs/Peripheral ICs Type:

    NFC CONTROLLER

ST25R3917B-AQET Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN5393, which includes guidelines for component placement, routing, and grounding to ensure optimal performance and minimize electromagnetic interference (EMI).
  • The ST25R3917B-AQET can be configured for different NFC modes using the registers and commands described in the datasheet. For example, setting the MODE register to 0x01 enables reader mode, while setting it to 0x02 enables writer mode. Additionally, STMicroelectronics provides example code and application notes to help with configuration and implementation.
  • The maximum distance for NFC communication using the ST25R3917B-AQET depends on various factors, including the antenna design, operating frequency, and environmental conditions. Typically, the maximum distance is around 10 cm (4 inches) for NFC-A and 5 cm (2 inches) for NFC-B. However, this can be optimized through careful antenna design and tuning.
  • The ST25R3917B-AQET provides error detection and correction mechanisms, such as CRC and parity checks, to ensure reliable data transfer. In case of errors or exceptions, the device can be reset using the RST pin or by software reset. Additionally, STMicroelectronics provides guidelines for error handling and debugging in the application notes and datasheet.
  • The ST25R3917B-AQET is designed to support NFC-A and NFC-B protocols, but it can also be used with other NFC protocols, such as NFC-F and NFC-V, with some modifications to the firmware and antenna design. However, this may require additional development and testing to ensure compatibility and performance.

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ST25R3917B-AQET Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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