M24C32S-FCU Datasheet, PDF (10/35 Pages) STMicroelectronics – 32-Kbit serial IC bus EEPROM 4 balls CSP

Device operation
4
Device operation
M24C32S-FCU
The device supports the I²C protocol. This is summarized in Figure 4. 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 4. I²C bus protocol
6&/
6'$
67$57
&RQGLWLRQ
6'$
,QSXW
6'$
&KDQJH
6723
&RQGLWLRQ
6&/
6'$



06%
67$57
&RQGLWLRQ
6&/
6'$



06%



$&.



$&.
6723
&RQGLWLRQ
$,'
10/35
DocID026427 Rev 5