User's Manual

AMICWare RFID Expert Software
Ver. 1.0F
29
Annex 1.5 Mifare Ultralight (Philips)
Complete Mifare Ultralight specification can be found in the Philips publication titled
“Mifare Ultralight Contactless Single-trip Ticket IC MF0 IC U1 Functional Specification”.
Figure 30 - Memory Structure of the Mifare Ultralight
Page Byte Number Description
0 SN0 SN1 SN2 BCC0 Serial Number
1 SN3 SN4 SN5 SN6 Serial Number
2 BCC1 Internal Lock0 Lock1 Internal / Lock
3 OTP1 OTP2 OTP3 OTP4 OTP
4 Data0 Data1 Data2 Data3 Data read/write
5 Data4 Data5 Data6 Data7 Data read/write
6 Data8 Data9 Data10 Data11 Data read/write
7 Data12 Data13 Data14 Data15 Data read/write
8 Data16 Data17 Data18 Data19 Data read/write
9 Data20 Data21 Data22 Data23 Data read/write
10 Data24 Data25 Data26 Data27 Data read/write
11 Data28 Data29 Data30 Data31 Data read/write
12 Data32 Data33 Data34 Data35 Data read/write
13 Data36 Data37 Data38 Data39 Data read/write
14 Data40 Data41 Data42 Data43 Data read/write
15 Data44 Data45 Data46 Data47 Data read/write
512 bit EEPROM memory is organized in 16 pages with 4 bytes each.
The chip offer read-only locking mechanism, after locking the page becomes read-only
memory.
Page 3 is the OTP page. It is pre-set to all “0” after production. These bytes may be bit-wise
modified by a write command, If a bit is set to “1”, it cannot be changed back to “0” again.
A 56-bit ID (factory programmed) uniquely identifies each Mifare Ultralight chip.
Unique Tag ID – 56 bits (7 bytes)