SN75LVPE5412: layout question

Hi Jeff,

For voiding under the high-speed pins we don't have specific guidelines, it is something that customers can do sometimes but not common enough to be part of our normal recommendations. I would say that for this kind of void, it is probably better to make the keepout exactly large enough to box the high-speed pins, and try to avoid making them wider than that. The reason is that we want to avoid making a large disruption in the ground plane through wide voids close to each other. In your picture the voids are larger than I have seen on past projects so it may be helpful to shrink them slightly.

Best,

Evan Su