M24M02E-F datasheet(23/54 Pages) STMICROELECTRONICS

Part #	M24M02E-F

Description	2-Mbit serial I²C bus EEPROM with configurable device address, software write protection registers, and preprogrammed device address

PDF	54 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

23 / 54 page

6.3

ECC (error correction code) and write cycling

The error correction code (ECC) is an internal logic function transparent for the I²C communication protocol.

The ECC logic is implemented on each group of four bytes (located at addresses [4*N, 4*N+1, 4*N+2, 4*N+3],

where N is an integer). Within a group, if a single bit happens to be erroneous during a read operation, the ECC

detects and replaces it with the correct value. The read reliability is therefore much improved.

Even if the ECC function is performed on groups of four bytes, a single byte can be written/cycled independently.

In this case, the ECC function also writes/cycles the three other bytes located in the same group. As a

consequence, the maximum cycling budget is defined at group level and the cycling can be distributed over the

four bytes of the group: the sum of the cycles seen by byte0, byte1, byte2, and byte3 of the same group must

remain below the maximum value defined in Table 16. Cycling performance by groups of four bytes.

M24M02E-F

Instructions

DS14157 - Rev 2

page 23/54

M24M02E-F Datasheet(PDF) 23 Page - STMicroelectronics