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M24512-W Datasheet(PDF) 11 Page - STMicroelectronics

Part No. M24512-W
Description  512 Kbit and 256 Kbit serial I²C bus EEPROM with three Chip Enable lines
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M24512-W Datasheet(HTML) 11 Page - STMicroelectronics

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M24512-x, M24256-Bx
Signal description
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Figure 6.
I2C bus protocol
Table 2.
Device select code
Device type identifier(1)
1.
The most significant bit, b7, is sent first.
Chip Enable address(2)
2.
E0, E1 and E2 are compared against the respective external pins on the memory device.
RW
b7
b6
b5
b4
b3
b2
b1
b0
Device select code
1010
E2
E1
E0
RW
Table 3.
Most significant address byte
b15
b14
b13
b12
b11
b10
b9
b8
Table 4.
Least significant address byte
b7
b6
b5
b4
b3
b2
b1
b0
SCL
SDA
SCL
SDA
SDA
Start
condition
SDA
Input
SDA
Change
AI00792c
Stop
condition
1
23
7
89
MSB
ACK
Start
condition
SCL
1
23
7
89
MSB
ACK
Stop
condition


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