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AR# 59056

V5QV - Unbonded or No connect pins connection


(UG520) 5QV Packaging and Pinout specification states that all unbonded or no connect pins must be connected to ground.

What is the reason for this?


 In space application you do not want any metal to be completely isolated, as this would allow it to build up charge that it can eventually discharge and cause damage.

You actually want charge to bleed off.

For this reason PCB design should follow the recommendation in Packaging user guide (UG520) to ground any unconnected pin.
AR# 59056
Date 03/16/2015
Status Active
Type General Article
  • Virtex-5QV
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