m24lr64-r STMicroelectronics, m24lr64-r Datasheet - Page 32

• Manufacturer Part Number: m24lr64-r
• Description: 64 Kbit Eeprom With Password Protection & Dual Interface 400 Khz I?c Serial Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

I
Figure 11. Write mode sequences with I2C_Write_Lock bit = 0 (data write enabled)
Figure 12. Write cycle polling flowchart using ACK
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2
C device operation
Byte Write
Page Write
First byte of instruction
with RW = 0 already
decoded by the device
Dev Select
Dev Select
R/W
R/W
ReStart
ACK
ACK
Stop
Byte address
Byte address
NO
NO
ACK
ACK
Start condition
Device select
addressing the
with RW = 0
in progress
operation is
Write cycle
Returned
memory
Byte address
Byte address
ACK
Next
Doc ID 15170 Rev 9
YES
Write operation
Write operation
Continue the
Data for the
ACK
ACK
YES
NO
Data in 1
Data in
and receive ACK
Send address
condition
ACK
ACK
Start
Data in 2
Random Read operation
Device select
Continue the
with RW = 1
YES
ACK
Data in N
AI01847d
M24LR64-R
AI15116
ACK