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Newbie ozuniga1992
Newbie
240 Views
Registered: ‎01-17-2019

Using the MT25QL128ABA8E12-1SIT to replace N25Q128A13E1241F TR

Hi,

The N25Q128A13E1241F TR is obsolete and I was hoping to use the MT25QL128ABA8E12-1SIT as a replacement. I do have a concern. The replacement part has a reset# pin associated with pin A4, whereas the N25Q128 part does not have a reset# associated with pin A4. Micron does state that "Ball A4 = RESET# or DNU, depending on the part number. This signal has an internal pull-up resistor and may be left unconnected if not used." We already have the boards fabbed from a while ago so there is no way for us to connect to the reset pin on the new part. Has anyone used this part or any similar parts with an Artix-7 or any other 7 Series FPGA and have left that pin floating?

Thanks in advance. 

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2 Replies
Xilinx Employee
Xilinx Employee
198 Views
Registered: ‎08-10-2008

回复: Using the MT25QL128ABA8E12-1SIT to replace N25Q128A13E1241F TR

This part is verified by Xilinx so it should work. If Micron says it can be left floating, then it would be OK.

Did you encounter failure or something?

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Moderator
Moderator
167 Views
Registered: ‎06-05-2013

回复: Using the MT25QL128ABA8E12-1SIT to replace N25Q128A13E1241F TR

As @iguo suggested it should work. Even our tool consider these parts in similar way. 

Here is the snapshot from VIvado file generation: Here is the AR https://www.xilinx.com/support/answers/68566.html 

adada.JPG 

 

You can also refer to following migration guide https://www.micron.com/-/media/client/global/documents/products/technical-note/nor-flash/tn2501_migrating_n25q_to_mt25ql.pdf 

Here is the design advisory from Micron: 

mcir.JPG 

Thanks

Harshit

 

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