4028 - iCE40 LP/HX: Are the NC (NOT CONNECTED) pins on iCE40 devices internally connected?

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• 7557 - Lattice MachXO2: How to connect the 'No Connect' NC pins of MachXO2 packages?

  Description: The 'No Connect' (NC) pins of the MachXO2 packages are true NC, they are unbonded internally, the package pins/balls are floating, therefore the NC pins can be either left floating, connect to GND or VCC. However, care must be taken on a ...

• 2879 - MaxhXO2: Are all pins defined as NC really not connected to anything? So, if a breakout was going to <b>route</b> through NC pins in MachXO2, there would not be an issue?

  Pins labeled as NC are not connected. The package pins/balls are floating. However, care must be taken on a device with NC if future pin migration is considered. On a lower density device with the same package, when moving to a higher density device, ...

• 6509 - CertusPro-NX: NC(No Connections) pins of CertusPro NX should be connected to GND, or can be left open/floating?

  No Connection pin is not actually connected on die so, either floating or ground connection can be applied.

• 5846 - All Devices: Can Lattice FPGA IO pins be left Floating?

  Floating IO pin is not recommended. If IO pins are left floating, then the input transistors might fall outside of the saturation or cut-off region. As a result, the device could draw additional current and increase the device's power consumption. If ...

• 1033 - Do the unused I/O pins need to be grounded in a device?

  Lattice devices have weak internal pull-ups on all I/Os. So the I/O pins which are not used in the design do not need to be grounded or connected anywhere. Some of Lattice devices have global setting for pull-ups on IOs like On, Off or Bus Hold, and ...