參數(shù)資料
型號: W25Q80VZPI
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 1M X 8 SPI BUS SERIAL EEPROM, DSO8
封裝: 6 X 5 MM, WSON-8
文件頁數(shù): 38/60頁
文件大?。?/td> 1276K
代理商: W25Q80VZPI
W25Q80, W25Q16, W25Q32
Publication Release Date: June 20, 2007
- 43 -
Advanced - Revision A5
10.2.26 Read Unique ID Number
The Read Unique ID Number instruction accesses a factory-set read-only 64-bit number that is unique
to each W25Q80, W25Q16 or W25Q64 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 27.
Figure 27. Read Unique ID Number Instruction Sequence
24 25 26 27
28
29
30 31 32
33 34
35
36
37 38 39 40 41
42
43 44 101 102 103
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