MF1S5009

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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

001aam209

CRC

Addr

PCD

Auth

Token RB

PICC

,,ACK''

368

μs

359

μs

PICC

NAK

,,NAK''

Time out

59

μs

001aam210

Token AB

PCD

Token BA

PICC

,,ACK''

708

μs

359

μs

PICC

NAK

,,NAK''

Time out

59

μs