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LMK05318: programming consultation

tsai yu
Prodigy 40 points
Part Number: LMK05318

I attempted to write to the EEPROM of this chip and found that data from 0 to 8 bytes could not be successfully written. I would like to inquire whether these bytes can be written to. Additionally, if not programmed, will it affect the functionality of the chip?

  • 0
    TI__Genius 11085 points

    Hi,

    Please check our register programming manual which states those bits are Read Only.

    Are you using the LMK05318 or LMK05318B? We recommend customers migrate to the -B version as this is the latest silicon.

    non-B: www.ti.com/.../snau237a.pdf

    -B:  www.ti.com/.../snau254

    Regards,

    Jennifer

  • 0
    Prodigy 40 points

    Hi Jennifer,

    Thanks for reply !!

    I'm sorry for the vague inquiry earlier.

    I would like to know if, after writing to the SRAM from 0 to 252, after the EEPROM programming command, the first 9 bytes (0-8) of the NVM EEPROM cannot be written to. Also, I would like to inquire about the power consumption status during programming of the LMK05318 nonB silicon.

    Regards,

    Tsaiyu

  • 0 in reply to tsai yu
    TI__Genius 11085 points

    Hi Tsaiyu,

    Thanks for clarifying. The first 9 bytes of SRAM/EEPROM come from read-only registers which should not be changed or modified. These registers are used for part identification and PLL calibration unique across parts.

    For the power consumption, I did a quick check on my bench and saw the current increase by 2mA during EEPROM programming. This is with the voltage set between 3.3V and 3.4V.

    Regards,

    Jennifer