Data Sheet

MFRC522 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.9 — 27 April 2016
112139 27 of 95
NXP Semiconductors
MFRC522
Standard performance MIFARE and NTAG frontend
Remark: Pins MFIN and MFOUT have a dedicated supply on pin SVDD with the ground
on pin PVSS. If pin MFIN is not used it must be connected to either pin SVDD or pin
PVSS. If pin SVDD is not used it must be connected to either pin DVDD, pin PVDD or any
other voltage supply pin.