NXP Semiconductors
MF1S70YYX_V1
MIFARE Classic EV1 4K - Mainstream contactless smart card IC for fast and easy solution development
MF1S70yyX_V1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet Rev. 3.2 — 23 November 2017
COMPANY PUBLIC 279332 13 / 37
• Read/write block: the operations read and write are allowed.
• Value block: Allows the additional value operations increment, decrement, transfer
and restore. With access condition ‘001’ only read and decrement are possible which
reflects a non-rechargeable card. For access condition ‘110’ recharging is possible by
using key B.
• Manufacturer block: the read-only condition is not affected by the access bits setting!
• Key management: in transport configuration key A must be used for authentication
Table 8. Access conditions for data blocks
Access bits Access condition for Application
C1 C2 C3 read write increment decrement,
transfer,
restore
0 0 0 key A|B key A|B key A|B key A|B transport
configuration
[1]
0 1 0 key A|B never never never read/write block
[1]
1 0 0 key A|B key B never never read/write block
[1]
1 1 0 key A|B key B key B key A|B value block
[1]
0 0 1 key A|B never never key A|B value block
[1]
0 1 1 key B key B never never read/write block
[1]
1 0 1 key B never never never read/write block
[1]
1 1 1 never never never never read/write block
[1] If key B may be read in the corresponding Sector Trailer it cannot serve for authentication (see grey marked lines in Table
7). As a consequences, if the reader authenticates any block of a sector which uses such access conditions for the Sector
Trailer and using key B, the card will refuse any subsequent memory access after authentication.
9 Command overview
The MIFARE Classic card activation follows the ISO/IEC 14443 Type A. After the
MIFARE Classic card has been selected, it can either be deactivated using the ISO/IEC
14443 Halt command, or the MIFARE Classic commands can be performed. For more
details about the card activation refer to Ref. 4.
9.1 MIFARE Classic command overview
All MIFARE Classic commands typically use the MIFARE CRYPTO1 and require an
authentication.
All available commands for the MIFARE Classic EV1 4K are shown in Table 9.
Table 9. Command overview
Command ISO/IEC 14443 Command code
(hexadecimal)
Request REQA 26h (7 bit)
Wake-up WUPA 52h (7 bit)
Anticollision CL1 Anticollision CL1 93h 20h
Select CL1 Select CL1 93h 70h