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M95512-R 数据表(PDF) 27 Page - STMicroelectronics

部件名 M95512-R
功能描述  512-Kbit serial SPI bus EEPROM
PDF  50 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M95512-R 数据表(HTML) 27 Page - STMicroelectronics

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M95512-W M95512-R M95512-DR M95512-DF
Instructions
6.8
Write Identification Page (available only in M95512-D
devices)
The Identification Page (128 bytes) is an additional page which can be written and (later)
permanently locked in Read-only mode.
Writing this page is achieved with the Write Identification Page instruction (see Table 4).
The Chip Select signal (S) is first driven low. The bits of the instruction byte, address bytes,
and at least one data byte are then shifted in on Serial Data Input (D). Address bit A10 must
be 0, upper address bits are Don't Care, the lower address bits [A6:A0] address bits define
the byte address inside the identification page. The instruction sequence is shown in
Figure 16.
Figure 16. Write identification page sequence
MS30909V1
C
D
S
Q
23
2
1
3
4
5
6
7
8
9 10
28 29 30 31 32 33 34 35
22 21
3
2
1
0
36 37 38
High impedance
Instruction
24-bit address
0
765432
0
1
Data byte
39



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