FXTH87E Tire Pressure Monitor Sensor (TPMS) Family

FXTH87E

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The FXTH87E is a highly integrated tire pressure sensor family and is providing the following features.

  • Small footprint in a 7mm x 7mm package
  • Low power consumption at 180 nA tvp (Stand-by current @ 3.0V, 25°C)
  • Large memory size at 16 kB
  • A field-proven dual-axis accelerometer architecture; the XZ axis offers motion detection and tire localization capabilities

Product Details

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Block Diagram

FXTH87E TPMS Family Block Diagram

FXTH87E TPMS Family Block Diagram
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Features

  • QFN 7 x 7 x 2.2 mm package enables visible solder joint for inspection
  • 100–500 kPa and 100–900 kPa pressure ranges
  • Z-axis or dual XZ-axis accelerometers
  • Accelerometer standard or precision tolerances available
  • Low-power wake-up timer, free-running counter, and periodic reset is driven by LFO
  • Dedicated state machines for reduced power consumption
  • 8-bit MCU/S08 core with SIM, interrupt and debug/monitor
  • 512 Bytes RAM / 16 k Flash (8 k for NXP® library, 8 k for applications)
  • Internal 315/434 MHz RF transmitter
  • Internal 125 kHz LF receiver
  • Six multipurpose GPIO pins (including two A/D inputs)

Documentation

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1-5 of 20 documents

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Design Resources

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Design Files

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4 design files

  • Printed Circuit Boards and Schematics

    GRB-TPMS-FXTH870911-315

    ZIPRev DJun 9, 2015 00:00:00311.2 KBGRB-TPMS-FXTH870911-315
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  • Printed Circuit Boards and Schematics

    GRB-TPMS-FXTH870911-434

    ZIPRev DJun 9, 2015 00:00:00312.1 KBGRB-TPMS-FXTH870911-434
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  • Printed Circuit Boards and Schematics

    Schematic TPMS FXTH870911 315MHz

    PDFRev DJun 9, 2015 00:00:0055.4 KBSCH-TPMS-FXTH870911-315
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  • Printed Circuit Boards and Schematics

    Schematic TPMS FXTH870911 434MHz

    PDFRev DJun 9, 2015 00:00:0055.7 KBSCH-TPMS-FXTH870911-434
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Software

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1-5 of 9 software files

  • Code Snippets

    LF/RF Bootloader (REV 1.3)

    ZIPRev 1.3May 25, 2020 14:55:008.7 MBTPMS_Bootloader
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  • Code Snippets

    2.4 GHz Bootloader for FXTH87E and MKW41Z (REV 1.0)

    ZIPRev 1.0Feb 6, 2020 10:10:006.3 MBBootloader_2.4GHz_FXTH87E_KW41Z
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  • Libraries

    NEW_TPMS_LFOCAL Library

    ZIPRev 4.0Oct 4, 2021 14:55:00615.6 KBNEW_TPMS_LFOCAL_Lib
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  • Libraries

    FXTH87E Configurable x-Meas Libraries (REV 3.0)

    ZIPRev 3.0Aug 12, 2019 13:54:001.9 MBTPMS-FXTH87E-CFGLIB
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  • Test, Debug and Analyzer Software

    TPMS Demo BLE Beacons by GenFSK

    ZIPRev 1.0Oct 2, 2019 14:41:0011.5 MBTPMS-DEMO-BLE-GENFSK
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Note: For better experience, software downloads are recommended on desktop.

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