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 24 of 40
NXP Semiconductors
MF1S50yyX/V1
MIFARE Classic EV1 1K - Mainstream contactless smart card IC
12.3 MIFARE Write
The MIFARE Write requires a block address, and writes 16 bytes of data into the
addressed MIFARE Classic EV1 1K block. It needs two pairs of command-response.
These two parts, MIFARE Write part 1 and part 2 are shown in Figure 18
and Figure 19
and Table 24
.
Table 25
shows the required timing.
Fig 18. MIFARE Write part 1
Fig 19. MIFARE Write part 2
Table 24. MIFARE Write command
Name Code Description Length
Cmd A0h Write one block 1 byte
Addr - MIFARE Block or Page address (00h
to FFh)
1 byte
CRC - CRC according to Ref. 4
2 bytes
Data - Data 16 bytes
NAK see Table 10
see Section 9.3 4-bit
001aan015
CRCAddrPCD Cmd
PICC ,,ACK''
368 μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
T
ACK
59 μs
ACK
59 μs
001aan016
CRCPCD Data
PICC ,,ACK''
1558 μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
T
ACK
59 μs
ACK
59 μs