Product Data Sheet

MF1S50yyX_V1 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.0 — 3 March 2014
279230 23 of 40
NXP Semiconductors
MF1S50yyX/V1
MIFARE Classic EV1 1K - Mainstream contactless smart card IC
Remark: The minimum required time between MIFARE Authentication part 1 and part 2 is
the minimum required FDT according to Ref. 4
. There is no maximum time specified.
Remark: The MIFARE authentication and encryption requires an MIFARE reader IC (e.g.
the CL RC632). For more details about the authentication command refer to the
corresponding data sheet (e.g. Ref. 5
). The 4-byte input parameter for the MIFARE
Classic Authentication is detailed in Section 10.1.3
and Section 10.2.2.
12.2 MIFARE Read
The MIFARE Read requires a block address, and returns the 16 bytes of one
MIFARE Classic block. The command structure is shown in Figure 17
and Table 22.
Table 23
shows the required timing.
Table 21. MIFARE authentication timing
T
ACK
min T
ACK
max T
NAK min
T
NAK max
T
TimeOut
Authentication part 1 n=9 T
TimeOut
n=9 n=9 1 ms
Authentication part 2 n=9 T
TimeOut
1 ms
Fig 17. MIFARE Read
Table 22. MIFARE Read command
Name Code Description Length
Cmd 30h Read one block 1 byte
Addr - MIFARE Block address (00h to FFh) 1 byte
CRC - CRC according to Ref. 4
2 bytes
Data - Data content of the addressed block 16 bytes
NAK see Table 10
see Section 9.3 4-bit
Table 23. MIFARE Read timing
T
ACK
min T
ACK
max T
NAK min
T
NAK max
T
TimeOut
Read n=9 T
TimeOut
n=9 T
TimeOut
5 ms
001aan014
CRC
CRC
AddrPCD Cmd
Data
PICC ,,ACK''
368 μs
1548 μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
T
ACK
59 μs