SPRZ569B November   2024  – September 2025 F29H850TU , F29H859TU-Q1

 

  1.   1
  2.   F29H85x, F29P58x, and F29P32x MCUs Silicon Errata Silicon Revisions A, 0
  3. 1Usage Notes and Advisories Matrices
    1. 1.1 Usage Notes Matrix
    2. 1.2 Advisories Matrix
  4. 2Nomenclature, Package Symbolization, and Revision Identification
    1. 2.1 Device and Development-Support Tool Nomenclature
    2. 2.2 Devices Supported
    3. 2.3 Package Symbolization and Revision Identification
  5. 3Silicon Revision B Usage Notes and Advisories
    1. 3.1 Silicon Revision B Usage Notes
    2. 3.2 Silicon Revision B Advisories
      1.      Advisory
      2. 3.2.1  Advisory
      3.      Advisory
      4. 3.2.2  Advisory
      5. 3.2.3  Advisory
      6. 3.2.4  Advisory
      7. 3.2.5  Advisory
      8. 3.2.6  Advisory
      9. 3.2.7  Advisory
      10.      Advisory
      11. 3.2.8  Advisory
      12.      Advisory
      13.      Advisory
      14.      Advisory
      15. 3.2.9  Advisory
      16. 3.2.10 Advisory
  6. 4Silicon Revision A Usage Notes and Advisories
    1. 4.1 Silicon Revision A Usage Notes
      1. 4.1.1 Security: New TI Keys Programmed on Silicon Revision B Devices
    2. 4.2 Silicon Revision A Advisories
      1. 4.2.1 Advisory
      2. 4.2.2 Advisory
      3. 4.2.3 Advisory
      4. 4.2.4 Advisory
      5. 4.2.5 Advisory
  7. 5Silicon Revision 0 Usage Notes and Advisories
    1. 5.1 Silicon Revision 0 Usage Notes
    2. 5.2 Silicon Revision 0 Advisories
      1. 5.2.1 Advisory
      2. 5.2.2 Advisory
  8. 6Documentation Support
  9. 7Trademarks
  10. 8Revision History

3.2.9 Advisory

System: Device Reset Remains Asserted When VDD Voltage Ramps Before VDDIO

Revisions Affected

0, A, B

Details

The device XRSn reset signal can remain in a low (reset asserted) state when the VDD supply voltage is ramped up before or simultaneously with the VDDIO supply. As a result, the device fails to boot.

F29H859TU-Q1 F29H850TU Incorrect Power-up Sequence Leading to Stuck Reset Figure 3-4 Incorrect Power-up Sequence Leading to Stuck Reset

Workaround

Ensure the VDDIO supply is fully ramped up at least 1ms before ramping up the VDD supply voltage.

F29H859TU-Q1 F29H850TU Correct Power-up Sequence With Reset Release Figure 3-5 Correct Power-up Sequence With Reset Release