"NC" pins on ST25R95-VMD5 Not Connected or Do Not Connect?

Casper van Doorne · ‎2020-09-22

Hi Everyone,

I'm designing an application with the ST25R95. It has several pins that are labeled as "NC".

To improve the PCBA lay-out, particularly the GND plane under the IC, I want to connect as many as possible pins to GND.

My Question:

Can the "NC" pins of the ST25R95 be tied to GND (Not Connected pins) or should I leave these pins floating (Do Not Connect pins) ?

Thanks in advance for sharing your insights.

Casper van Doorne

Pink Fluffy Unicorns BV

Brian TIDAL · ‎2020-09-22

Hi,

on the X-NUCLEO-NFC03A1 board, the NC pins 3/4/7/10/11/23-28 are connected to GND. See schematics in UM2479.

Same for the CR95HF transceiver board in the M24LR-DISCOVERY kit.

Rgds

BT

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View solution in original post

Brian TIDAL · ‎2020-09-22

Hi,

on the X-NUCLEO-NFC03A1 board, the NC pins 3/4/7/10/11/23-28 are connected to GND. See schematics in UM2479.

Same for the CR95HF transceiver board in the M24LR-DISCOVERY kit.

Rgds

BT

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Casper van Doorne · ‎2020-09-22

Well Brian, I guess that answers my question.

Thank you very much for your contribution!