SPRUJB3C March 2024 – November 2025 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
IOs support HHV mode during power up. HHV is active when PORz signal is driven LOW.
HHV allows IO cells to be tri-stated and is an IO feature. All IO cells have HHV which is asserted (driven) by HHV generated during PORz assertion. There are default pull values during this HHV/PORz assertion specified in the device Datasheet for each pin. All HHV logic controlling the buffer output enable and associated default internal pull for each IO will be applied.
HHV Timing Diagram demonstrates the timing sequence for the device HHV signals.
Figure 6-24 HHV Timing Diagram