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 91 of 95
NXP Semiconductors
MFRC522
Standard performance MIFARE and NTAG frontend
22. Revision history
Table 160. Revision history
Document ID Release date Data sheet status Change notice Supersedes
MFRC522 v.3.9 20160427 Product data sheet - MFRC522 v.3.8
Modifications:
• Section 1 “Introduction” and Section 2 “General description”: updated and NTAG
functionality added
• Descriptive title updated
MFRC522 v.3.8 20140917 Product data sheet - MFRC522 v.3.7
Modifications:
• Table 150 “Limiting values”: updated
MFRC522 v.3.7 20140326 Product data sheet - MFRC522 v.3.6
Modifications:
• Change of descriptive title
• Section 23.4 “Licenses” removed
MFRC522 v.3.6 20111214 Product data sheet - MFRC522_35
Modifications:
• Section 1.1 “Differences between version 1.0 and 2.0” on page 1: added
• Table 2 “Ordering information” on page 3: updated
• Section 9.3.2.10 “DemodReg register” on page 53: register updated and add reference to
Timer unit
• Section 8.5 “Timer unit” on page 31: Pre Scaler Information for version 2.0 added
• Section 9.3.4.8 “VersionReg register” on page 66: version information structured in chip
information and version information updated, including version 1.0 and 2.0
• Section 16.1 “Test signals” on page 82: selftest result including values for version 1.0 and
2.0
MFRC522_35 20100621 Product data sheet MFRC522_34
Modifications:
• Section 9.3.2.10 “DemodReg register” on page 53: register updated
• Section 9.3.3.10 “TModeReg and TPrescalerReg registers” on page 60: register updated
• Section 8.5 “Timer unit” on page 31: timer calculation updated
• Section 9.3.4.8 “VersionReg register” on page 66: version B2h updated
• Section 16.1 “Test signals” on page 82: selftest result updated
MFRC522_34 20100305 Product data sheet MFRC522_33
Modifications:
• Section 8.5 “Timer unit”: information added
• Table 106 “TModeReg register bit descriptions”: bit 7 updated
• Table 154 “SPI timing characteristics”: row added
MFRC522_33 20091026 Product data sheet - 112132