M24C64 Datasheet, PDF (6/26 Pages) STMicroelectronics – 64/32 Kbit Serial I²C Bus EEPROM

M24C64, M24C32
Figure 5. I²C Bus Protocol
SCL
SDA
START
Condition
SDA
Input
SDA
Change
STOP
Condition
SCL
SDA
1
2
3
MSB
START
Condition
SCL
SDA
1
2
3
MSB
7
8
9
ACK
7
8
9
ACK
STOP
Condition
AI00792B
Table 3. Device Select Code
Device Type Identifier¹
Chip Enable Address²
RW
b7
b6
b5
b4
b3
b2
b1
b0
Device Select Code
1
0
1
0
E2
E1
E0
RW
Note: 1. The most significant bit, b7, is sent first.
2. E0, E1 and E2 are compared against the respective external pins on the memory device.
Table 4. Most Significant Byte
b15 b14 b13 b12 b11 b10 b9 b8
Table 5. Least Significant Byte
b7 b6 b5 b4 b3 b2 b1 b0
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