Datasheet

DocID18204 Rev 6 15/36
M24M02-DR Instructions
5.1.1 Byte Write
After the device select code and the address byte, the bus master sends one data byte. If
the addressed location is Write-protected, by Write Control (
WC) being driven high, the
device replies with NoAck, and the location is not modified. If, instead, the addressed
location is not Write-protected, the device replies with Ack. The bus master terminates the
transfer by generating a Stop condition, as shown in Figure 7.
Figure 7. Write mode sequences with WC = 0 (data write enabled)
Stop
Start
Byte Write Dev sel Byte addr
Byte addr Data in
WC
Start
Page Write Dev sel Byte addr Byte addr Data in 1
WC
Data in 2
AI01106d
Page Write (cont'd)
WC (cont'd)
Stop
Data in N
ACK
R/W
ACK ACK ACK
ACK ACK ACK ACK
R/W
ACKACK