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Domestic Nor Flash BY25D80ASSIG can be replaced with W25Q80DVSSIG of WINBOND

December 23, 2020

Feasibility analysis of Boya Technology's SPI NOR FLASH BY25D80ASSIG can be replaced with WINBOND's W25Q80DVSSIG, and the basic parameter performance is similar.

The parameter comparison between BY25D80ASSIG and W25Q80DVSSIG is shown in the following table:

20201223_100359.jpg

From the table above,

1. BY25D80ASSIG and W25Q80DVSSIG have the same memory, working voltage, working temperature and packaging parameters;

2. In terms of frequency and power consumption, BY25D80ASSIG and W25Q80DVSSIG are basically similar. 

BY25D80ASSIG and W25Q80DVSSIG package, pin distribution:

20201223_100428.jpg

                       Figure 1 Pinout of BY25D80ASSIG

20201223_100440.jpg

                      Figure 2 W25Q80DVSSIG pin distribution


The pin definition comparison of BY25D80ASSIG and W25Q80DVSSIG is as follows:


                     Table 2 BY25D80ASSIG pin definition

20201223_100455.jpg                     

                    Table 3 W25Q80DVSSIG pin definition

20201223_100508.jpg

It can be seen from the above that BY25D80ASSIG and W25Q80DVSSIG have the same package, and the pin definitions are basically the same. If the Hold Input (Data Input Output 3) function is not used, the function can be replaced. In summary, on the basis of not needing to use the Hold Input (Data Input Output 3) function, Boya Technology's SPI NOR FLASH BY25D80ASSIG can be PIN-TO-PIN and WINBOND's W25Q80DVSSIG can be replaced.

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