Please find updated NX2LP compatibility list at http://www.cypress.com/?rID=14320. If you have any other flash which you are considering for NX2LP, we can run the compatibility tests for you; and include that in this list.
Please create tech support case for this case.
Primary reqyuirements to be considered for NX2LP are:
1-bit ECC for every 512 bytes
48 pin TSOP
supported page size: 512, 2k and 4k bytes