42568WP 데이터 시트보기 (PDF) - STMicroelectronics

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42568WP

256 Kbit Serial I2C Bus EEPROM / 4256BWP / SOP8

STMicroelectronics 

M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF

4

Device operation

Device operation

The device supports the I2C protocol. This is summarized in Figure 6. Any device that sends

data on to the bus is defined to be a transmitter, and any device that reads the data to be a

receiver. The device that controls the data transfer is known as the bus master, and the

other as the slave device. A data transfer can only be initiated by the bus master, which will

also provide the serial clock for synchronization. The device is always a slave in all

communications.

Figure 6. I2C bus protocol

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DocID6757 Rev 32

11/39

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