AN3408 datasheet(8/38 Pages) STMICROELECTRONICS

8 / 38 page

Memory organization for STMicroelectronics ISO/IEC 15693 products

AN3408

8/38

DocID018867 Rev 4

1.2

DSFID and AFI system area

For more details on DSFID and AFI system area, please refer to the corresponding

STMicroelectronics datasheet.

1.3

Unique identifier

The unique identifier (UID) is an 8-byte field used to identify an IC. The UID is defined by the

IC manufacturer and is write-protected.

The UID bytes are given in Table 4. The first byte value is fixed to 0xE0, and the second

byte value contains the IC manufacturer code.

Note:

The IC manufacturer code of STMicroelectronics is 0x02 on 8 bits (refer to [15693-3] – on

page 1).

1.4

Protection system

The user memory area of ISO/IEC 15693 STMicroelectronics products can be write-

protected. The granularity of the protection can be either 4 bytes or 128 bytes as defined in

Table 6 below.

For more details on the protection system, please refer to the corresponding

STMicroelectronics datasheet.

•

The LRIS64K and M24LRxx memory write-protected granularity is the sector.

•

The LRI1K, LRI2K and LRIS2K memory write-protected granularity is the block.

Table 4. UID field description

UID 7

UID 6

UID 5

UID 4-0

0xE0

IC manufacturer code

IC product code

Contactless tag unique

number

Table 5. IC product code for ISO/IEC 15639 STMicroelectronics products

LRI1K

LRI2K

LRIS2K

LRIS64K

(1)

M24LR64-

R (1)

M24LR04

E-R

M24LR64

E-R (1)

M24LR16

E-R (1)

UID 5

(1 byte)

IC product

0b010000

0b001000

0b001010x

0b0100

01xx

0b001

011xx

0b0101

11xx

0b0101

11xx

0b0100

11xx

This product has an extended addressing mode; refer to the product datasheet.

Table 6. ST ISO/IEC 15693 sector size

LRI1K

LRI2K

LRIS2K

LRIS64K

M24LR04E-R

M24LR16E-R

M24LR64E-R

Memory block

size

4 bytes

128 bytes

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