参数资料
型号: W25Q64CVSSIG
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 64M X 1 SPI BUS SERIAL EEPROM, PDSO8
封装: 0.208 INCH, GREEN, SOIC-8
文件页数: 51/79页
文件大小: 1086K
代理商: W25Q64CVSSIG
W25Q64CV
Publication Release Date: April 01, 2011
- 55 -
Revision C
7.2.34 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 W25Q64CV 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 32.
/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 )
24
0
DO
(IO
1)
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
100
101
102
1
0
High Impedance
64-bit Unique Serial Number
= MSB
*
Figure 32. Read Unique ID Number Instruction Sequence
相关PDF资料
PDF描述
W25Q64CVZPAP 64M X 1 SPI BUS SERIAL EEPROM, PDSO8
WMS128K8C-25CQE 128K X 8 STANDARD SRAM, 25 ns, CDIP32
WMF512K8X-150DEC5 512K X 8 FLASH 5V PROM, 150 ns, CDSO32
WME128K8X-200DEC 128K X 8 EEPROM 5V, 200 ns, CDSO32
WMF512K8X-70FEM5 512K X 8 FLASH 5V PROM, 70 ns, CDFP32
相关代理商/技术参数
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