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HM25Q40C Scheda tecnica(PDF) 53 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Il numero della parte HM25Q40C
Spiegazioni elettronici  3V 4M -BIT SERIAL NOR FLASH WITH DUAL AND QUAD SPI
PDF  62 Pages
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Produttore elettronici  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Homepage  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM25Q40C Scheda tecnica(HTML) 53 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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The Read Unique ID Number instruction accesses a factory-set read-only 64-bit number which is unique
to each
HM25Q40A/20 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 four bytes dummy clocks. After that, the 64-bit ID is shifted
out on the falling edge of CLK as shown in Figure 7.38.
Figure 7.38 Read unique ID Number Instruction
HM25Q40A



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