Datasheet

MiFare Ultralight Cards

MiFare Ultralight cards typically contain 512 bits (64 bytes) of memory, including 4 bytes (32-bits) of OTP (One Time

Programmable) memory where the individual bits can be written but not erased.

MF0ICU1 MiFare Ultralight Functional Specification (https://adafru.it/aSN)

MiFare Ultralight cards have a 7-byte UID that uniquely identifies the card.

EEPROM Memory

MiFare Ultralight cards have 512 bits (64 bytes) of EEPROM memory, including 4 byte (32 bits) of OTP memory. Unlike

Mifare Classic cards, there is no authentication on a per block level, although the blocks can be set to "read-only"

mode using Lock Bytes (described below).

EEPROM memory is organised into 16 pages of four bytes eachs, in the following order:

Here are the pages and blocks arranged in table format:

------------------------Sector 14-------------------------

Block 56 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 57 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 58 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 59 00 00 00 00 00 00 FF 07 80 69 FF FF FF FF FF FF ......ÿ.?iÿÿÿÿÿÿ

------------------------Sector 15-------------------------

Block 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 61 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 62 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Block 63 00 00 00 00 00 00 FF 07 80 69 FF FF FF FF FF FF ......ÿ.?iÿÿÿÿÿÿ

[---------------------------End of Memory Dump---------------------------]

Page Description

---- ------------

0 Serial Number (4 bytes)

1 Serial Number (4 bytes)

2 Byte 0: Serial Number

Byte 1: Internal Memory

Byte 2..3: lock bytes

3 One-time programmable memory (4 bytes)

4..15 User memory (4 bytes)