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 5.

Figure 6. Write mode sequences with WC = 0 (data write enabled)

Byte Write

Dev Select

Byte address

Data in

WC

Page Write

Dev Select

Byte address

Data in 1

Data in 2

WC

Data in 3

Page Write(cont'd)

WC (cont'd)

Data in N

ACK

R/W

ACK

ACK

ACK

ACK

ACK

ACK

R/W

ACK

ACK

M24C01/02-W M24C01/02-R M24C02-F

Write operations

DS9398 - Rev 7

page 11/41