Datasheet

M24C32-W M24C32-R M24C32-F M24C32-X M24C32-DF Device operation
Doc ID 4578 Rev 21 11/40
4 Device operation
The device supports the I
2
C protocol. This is summarized in Figure 5. 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 5. I
2
C bus protocol
SCL
SDA
SCL
SDA
SDA
START
Condition
SDA
Input
SDA
Change
AI00792B
STOP
Condition
1 23 7 89
MSB
ACK
START
Condition
SCL
1 23 7 89
MSB ACK
STOP
Condition