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TMS570LS0332: nPORRST logic level?

Felix Risch25
Intellectual 1110 points

Part Number: TMS570LS0332

Hi team,

How high does the voltage level need to be during operation, in order not to flag a reset?
We measured  2.85V while VCCIO was 3.3V. Is that sufficiently high?

Thank you and kind regards,

Felix

  • 0
    TI__Guru**** 201386 points
    Hi Felix,

    The recommended operating voltages are:
    1. VCC: 1.14 to 1.32V
    2. VCCIO: 3 to 3.6V

    The low-level input voltage of nPORRST (VCCIO>2.5V) is 0.2*VCCIO. If your VCCIO is 3.3V, the Vil for nPORRST is 0.66V, so 2.85V is definitely high enough.