M24C04确认0x50到0x57而不是0x50/0x51

嗨，
我正在使用带有5-UFDFPN封装的M24C04 EEPROM。
我可以毫无问题地读/写它，但我发现EEPROM不仅确认0x50和0x51，而且实际上确认0x50到0x57。根据数据表，5-UFDFPN封装的地址应为：
1 0 1 0 0 0 A8
其中A8是页码。对于其他包，它是：
1 0 1 0 E2 E1 A8
其中E2和E1是IC上的引脚。数据表显示DF和5封装中的E1和E2读为0。但从我看来，芯片似乎接受E1和E2的任何值，因此确认0x50到0x57。
我测试确实这个IC导致'假确认'，因为EEPROM的I2C线路在多路复用器上，当多路复用器断开EEPROM与uC的连接时，我不再得到确认。
你以前见过这个问题吗？
谢谢，

弗雷德



以下为原文




Hi,
I'm using the M24C04 EEPROM with the 5-UFDFPN package.
I can read/write to it without problems, but I just found out that the EEPROM acknowledges not only 0x50 and 0x51, but actually acknowledges 0x50 to 0x57. According to the datasheet, the address of the 5-UFDFPN package should be:
1 0 1 0 0 0 A8
Where A8 is the page number. For the other packages, it's:
1 0 1 0 E2 E1 A8
Where E2 and E1 are pins on the IC. The datasheet says that E1 and E2 are read as 0 in the DFN5 package. But from what I see, it seems that the chip accepts any value of E1 and E2, thus acknowledging 0x50 to 0x57.
I tested that it is indeed this IC that causes the 'fake acknowledgements' because the I2C lines of that EEPROM are on a mul tiplexer, and when the mux disconnects the EEPROM from the uC, I don't get the acknowledgements anymore.
Have you seen this problem before?
Thank you,


Fred