Datasheet

MF1S5009 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3 — 27 July 2010
189131 19 of 32
NXP Semiconductors
MF1S5009
Mainstream contactless smart card IC
11. MIFARE classic commands
11.1 MIFARE Authentication
The MIFARE authentication is a 3-pass mutual authentication which needs two pairs of
command-response. These two parts, MIFARE authentication part 1 and part 2 are shown
in Figure 12
, Figure 13 and Table 12.
Table 13
shows the required timing.
Fig 12. MIFARE Authentication part 1
Fig 13. MIFARE Authentication part 2
001aam20
9
CRCAddrPCD Auth
Token RB
PICC
,,ACK''
368 μs
359 μs
PICC
NAK
,,NAK''
Time out
T
TimeOut
T
NAK
T
ACK
59 μs
001aam21
0
Token ABPCD
Token BA
PICC
,,ACK''
708 μs
359 μs
PICC
NAK
,,NAK''
Time out
T
TimeOut
T
NAK
T
ACK
59 μs