CY7C series SRAM pin compatibility problems

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zhzh_4663796
Level 1
Level 1

我有一个开发板,使用的CY7C1338G,准备用CY7C1441或CY7C1481替代,CY7C1441或CY7C1481只是多了几根地址线,而CY7C1338并没有使用这几个引脚,另外,CY7C1441或CY7C1481的DQP1~4如果不使用,需要怎么处理,最终能够实现板子对这三个芯片都兼容呢?

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Roy_Liu
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5 comments on KBA First comment on KBA 10 questions asked

板子对三个芯片都兼容不好弄吧,CY7C1441或CY7C1481比CY7C1338G多出的地址线你打算怎么处理?

DQP1不用的话可以通过1k电阻接到VDD。

Roy Liu

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Roy_Liu
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5 comments on KBA First comment on KBA 10 questions asked

板子对三个芯片都兼容不好弄吧,CY7C1441或CY7C1481比CY7C1338G多出的地址线你打算怎么处理?

DQP1不用的话可以通过1k电阻接到VDD。

Roy Liu
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画PCB的时候按照最多地址线来画,也就是按照CY7C1481来画,后面焊接的时候可以选型性的焊接不同的SRAM,这样只要通过软件配置不同的大小是不是就可以兼容三种芯片?

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Roy_Liu
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5 comments on KBA First comment on KBA 10 questions asked

嗯嗯,看起来可以。

Roy Liu
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