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MFRC630 and CLRC663 Interchangeability?

Question asked by Jonathan Frech on Apr 28, 2019

Currently our product uses two pcs of CLRC663. They are matched to 50Ohms impedance, so they will not make use of the "high current" capability of the CLRC663. For the furture, we want to save on production costs and use just one CLRC663 (needed because it must support 14443 and 15693) and one MFRC630 (second reader only needs mifare).


I succesfully tested our own library on both products and they seem to work, even with "changeable" uid chip types very

well. So it wouldn't be a software thing. My guess is that the MFRC630 is just a different firmware than CLRC630, to not support ISO15693


Footprint and pinout are the same


The only thing i wonder is about the matching.


Could the CLRC663 which is matched for mifare, replaced by a drop-in MFRC630 without changing the matching network?