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jkhoo's avatar
jkhoo
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3 years ago

Can Stratix V IO pin configure with HSTL12 class 1 work at 0.8V

Hi PSG team, My i am currently sourcing 0.8V into VCCIO for very bank in stratix V and it is working. Based on DC and Switching Characteristics for statix V devices, HSTL-12 Class 1 VCCIO is paper ...
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jkhoo's avatar
jkhoo
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Extra question,

If i am force by situation to source 0.8V into VCCIO while configuring the IO buffer/pins to HSTL-12 Class 1 standard, which particular electrical parameter that may shift?

  1. will the Vth change resulting in worst duty cycle distortion?
  2. will the IO buffer well biasing become more stressful resulting in reliability issue?
  3. what will the voltage difference between VCCPD(at 2.5V) vs VCCIO(at 0.8V) cause?