M24M01-RMN6P(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M24M01-RMN6P
(Rev.:2012)

1-Mbit serial I²C bus EEPROM

STMicroelectronics 

Initial delivery state

M24M01-R M24M01-DF

5.4

Read the lock status (M24M01-D only)

The locked/unlocked status of the Identification page can be checked by transmitting a

specific truncated command [Identification Page Write instruction + one data byte] to the

device. The device returns an acknowledge bit if the Identification page is unlocked,

otherwise a NoAck bit if the Identification page is locked.

Right after this, it is recommended to transmit to the device a Start condition followed by a

Stop condition, so that:

● Start: the truncated command is not executed because the Start condition resets the

device internal logic,

● Stop: the device is then set back into Standby mode by the Stop condition.

6

Initial delivery state

The device is delivered with all bits set to 1 (both in the memory array and in the

Identification page - that is, each byte contains FFh).

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Doc ID 12943 Rev 10

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