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Original question:

66AK2G12: Compatibility check with Serial NOR flash MT25QU512ABB1EW9-0SIT, 64MB

66AK2G12: Compatibility check with Parallel NOR flash (MT28EW01GABA1lJS-0SIT, 1Gb)

Jack
Mastermind 9075 points
Part Number: 66AK2G12

Hi 

My customer would like to consider a Parallel NOR Flash (MT28EW01GABA1LJS-0SIT, 1Gb).

Could you please confirm there're no critical problem when interface with 66AK2G12 and MT28EW01GABA1LJS-0SIT, 1Gb?

Thanks.

Best Regards, 

Jack Cha

  • 0
    TI__Mastermind 30110 points

    Hi Jack,

    I'm confident that the GPMC on 66AK2G12 can operate with the MT28EW01GABA NOR Flash. We have proven GPMC works with MT28EW256ABA1LPC (with a  processor different to 66AK2G12). I recommend evaluating it before going to production.

    If the customer plans to boot from NOR with XiP, refer to the KeyStoneII.BTS_errata_advisory.46 — BOOT, GPMC: GPMC XIP Boot Failure in 66AK2G1x Silicon Errata SPRZ451B  https://www.ti.com/lit/er/sprz451b/sprz451b.pdf

    The default timing value is too aggressive for the currently available flash devices. To work around this issue, the boot pins should select a PLL reference clock frequency that is higher than the actual reference clock frequency.

    This advisory states:
    "I must also restate that TI does not make component recommendations. The system designer must read all datasheets, technical reference manuals, silicon errata, or any other relevant collateral that is necessary to confirm a device meets all system requirements. Prototypes should be built and function confirmed across all operating conditions using selecting components."

    Regards,
    Mark