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AM3352: NAND FLASH for sitara processor(AM3352)

VINEETH S
Prodigy 40 points
Part Number: AM3352

Hello,

We are using am3352 with an eMMC Flash memory(MTFC4GMWDM-3M AIT TR). Now we need to change eMMC flash to NAND Flash, but unfortunately we are not able to find a compatible NAND flash memory chip that fits the am3352 requirements.

Could you please suggest compatible part numbers?

Our requirements are:

- Size: 32Gb (4G x 8)

- Temperature range: -40 to +85ºC

- 8-bit bus width

-Voltage Supply: 3.3V

Thank you for your help

Best regards

Vineeth

  • 0
    TI__Mastermind 29180 points

    Hi Vineeth,

    The key careabouts in your search are...
    Page size <= 4k
    Minimum ECC <= 16-bit (BCH)
    Most MLC NAND will require > 16-bit for ECC
    Most SLC NAND require < 16-bit ECC but are <= 8Gb

    See this similar post:
    https://e2e.ti.com/support/processors/f/processors-forum/796657/am3352-32gbit-nand-flash-options

    Typically TI does not give recommendation about memory manufacturers.

    However looking at parts from Micron...
    There is a 16Gb SLC NAND with 4k page and 4-bit and 8-bit ECC requirements. See M62B MT29F16G08ABABAWP (4-bit ECC). See M72A MT29F16G08ABACAWP (8-bit ECC).

    You might be able to find M62B with 2 or 4 dice in a package. See 64Gb M62B MT29F64G08AJABAWP QDP.
    Dual-die package and Quad-die package will have 2 chip selects.
    The bootloader will always boot from CS0.

    May I ask why you are moving from eMMC to raw NAND? eMMC is a managed NAND, typically MLC. eMMC can perform the higher order error correction required unlocking less expensive, higher density MLC and 3D TLC NAND architectures. This allows eMMC to offer higher capacities than SLC raw NAND.

    Hope this helps,
    Mark