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W25X05CLZPIG датащи(PDF) 34 Page - Winbond

номер детали W25X05CLZPIG
подробное описание детали  2.5 / 3 / 3.3 V 512K / 1M / 2M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL I/O SPI
PDF  51 Pages
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производитель  WINBOND [Winbond]
домашняя страница  http://www.winbond.com
Logo WINBOND - Winbond

W25X05CLZPIG датащи(HTML) 34 Page - Winbond

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W25X05CL/10CL/20CL
Publication Release Date: March 23, 2012
- 34 -
Revision B
8.2.23
Read Unique ID Number (4Bh)
The Read Unique ID Number instruction accesses a factory-set read-only 64-bit number that is unique
to each W25X05CL/10CL/20CL device. The ID number can be used in conjunction with user software
methods to help prevent copying or cloning of a system. The Read Unique ID instruction is initiated by
driving the /CS pin low and shifting the instruction
code “4Bh” followed by a four bytes of dummy
clocks. After which, the 64-bit ID is shifted out on the falling edge of CLK as shown in figure 24.
Figure 24. Read Unique ID Number Instruction Sequence
/CS
CLK
DI
(IO
0)
DO
(IO
1)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (4Bh)
High Impedance
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
/CS
CLK
DI
(IO
0)
DO
(IO
1)
24
25
26
27
28
29
30
31
32
33
34
36
37
38
35
23
Mode 0
Mode 3
*
Dummy Byte 1
Dummy Byte 2
39
40
41
42
Dummy Byte 3
Dummy Byte 4
63
62
61
2
1
0
64-bit Unique Serial Number
High Impedance
= MSB
*



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