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你好 ,
我们目前正在开发一个使用EEPROM存储零星数据的项目。 eeprom是一款24AA512,内存为512kbits,来自Microchip。 我们使用它来存储来自我们应用程序的数据记录数据。问题是我们有时还需要只存储3-4个字节的数据,并且这个eeprom执行相同的页面或字节写操作,这意味着即使我选择只在页面区域中写入一个字节,也会刷新整页128字节,每次都减少一个周期的整页耐力。这可能会导致我们的应用程序出现问题。 有没有人可以告诉我ST的芯片是否也是如此,例如M24512或M95512?每个字节写入是否意味着必须刷新整个页面?这一点似乎没有在数据表中明确定义...... 提前感谢您的帮助。 埃里克 #endurance#byte-write#page-write #eeprom 以上来自于谷歌翻译 以下为原文 Hi There , We are currently working on a project using an EEPROM to store sporadic data. The eeprom is a 24AA512 with 512kbits memory, from Microchip. We use it to store datalogging data from our application. The problem is that we sometimes also need to store only 3-4 bytes data and that this eeprom does page or byte write operations identically, meanning that a full page of 128bytes is refreshed even if I choose to write only one byte in a page area, reducing the endurance of the full page of one cycle everytime. This might cause a problem in our application. Could anybody tell me if that is the case too in chips of ST , as the M24512 or M95512 for example? does every single byte write means that the full page has to be refreshed? That point doesn't seem to be clearly defined in the datasheet... thanks in advance for any help. Eric #endurance #byte-write #page-write #eeprom |
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我知道这是'接口和连接IC'论坛,并认为这是最合适的论坛,因为没有论坛预见该网站上的记忆,并且'接口'部分可能是最接近的i2c可寻址EEPROM。
如果你能说明它属于哪个论坛,我会非常乐意将我的问题转移到更合适的论坛。 谢谢 以上来自于谷歌翻译 以下为原文 I understand that this is the 'Interface and Connectivity ICs' forum, and assumed that this the most appropriate forum since there is no forum foreseen for the memory ics on that website, and that the 'Interface' part is probaybly what is the closest to the i2c addressable EEPROM. I would be more than happy to move my question to a more appropriate forum if you can make clear in which forum it belongs to. Thanks |
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好,
对于那些可能感兴趣的人,我收到了来自st支持的答案,其中包括: '在ST EEPROM中,字节或页面写入不会触发整页刷新。 只更新了共享相同ECC字的寻址字节和相邻字节。这基本上回答了我的问题,所以我将其标记为已解决。 除此之外,我仍然没有找到比“接口和连接”更合适的论坛部分,在这个论坛上询问有关EEPROM的问题。 以上来自于谷歌翻译 以下为原文 Ok, for those that this might interest, I received an answer from st support which is the following: 'In ST EEPROM, a byte or page write doesn’t trigger a full page refresh. Only the addressed bytes and the adjacent bytes sharing the same ECC word are updated.'This basically answered my question, so i'll mark it as solved. Beside this, I still haven't found a more appropriate forum section than 'Interface and Connectivity' to ask a question about EEPROM on this forum. |
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