M24128-BFCS6G/K 데이터 시트보기 (PDF) - STMicroelectronics

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M24128-BFCS6G/K

128-Kbit serial I²C bus EEPROM

STMicroelectronics 

M24128-BW M24128-BR M24128-BF M24128-DF

Instructions

5.4

Read the lock status (M24128-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.

DocID16892 Rev 30

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