M24M02-DWMN3TP datasheet(14/38 Pages) STMICROELECTRONICS

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Device operation

M24M02-A125

14/38

DocID027947 Rev 2

3.6

Identification page

The M24M02-A125 offers an Identification Page (256 byte) in addition to the 2 Mb memory.

The Identification page contains two fields:

•

Device identification code: the first three bytes are programmed by STMicroelectronics

with the Device identification code, as shown in Table 4.

•

Application parameters: the bytes after the Device identification code are available for

application specific data.

Note:

If the end application does not need to read the Device identification code, this field can be

overwritten and used to store application-specific data. Once the application-specific data

are written in the Identification page, the whole Identification page should be permanently

locked in Read-only mode.

The instructions Read, Write and Lock Identification Page are detailed in Section 4:

Instructions.

Table 4. Device identification code

Address in

Identification page

Content

Value

00h

ST manufacturer code

20h

01h

I2C family code

E0h

02h

Memory density code

12h (2048 Kbit)

M24M02-DWMN3TP Datasheet(PDF) 14 Page - STMicroelectronics