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Non Volatile RAM (F-RAM & NVSRAM) Forum Discussions

Anonymous
Not applicable

Hello,

I am testing a CY15V104QSN device and reading its device ID. From the preliminary datasheet from July 30, 2018, the expected device ID is 0x0000000006825150. At least that is the only device ID specified in the datasheet, for the CY15B104QSN 3.0V version of the part. I am reading back 0x7F7F7F7F06805150. I believe the 0x7Fs are "continuation codes". Can you please advise whether this should be the expected RDID output for this part?

For reference, the silkscreen on the part is:

15V04QN50?  (last character not clear)

A 610724

CYP 1813

Thank you!

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1 Solution
PradiptaB_11
Moderator
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500 replies posted 250 solutions authored 250 replies posted

Hi Jon,

The read device ID is correct. It seems you have ordered CY15V104QN part not the CY15V104QSN (We checked this from the top markings you provided). CY15V104QN is 4Mbit, SPI part. You need to order CY15V104QSN part for QSPI part.

Thanks and Regards,

Pradipta.

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4 Replies
PradiptaB_11
Moderator
Moderator
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500 replies posted 250 solutions authored 250 replies posted

Hi Jon,

The read device ID is correct. It seems you have ordered CY15V104QN part not the CY15V104QSN (We checked this from the top markings you provided). CY15V104QN is 4Mbit, SPI part. You need to order CY15V104QSN part for QSPI part.

Thanks and Regards,

Pradipta.

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Anonymous
Not applicable

Thank you for the response, Pradipta.

I have been told what we expect to have on the board is the CY15V104QSN-108SXIES (Engineering Samples). Is it possible the engineering samples of the QSN part could have those markings on the part?

Regards,

Jon

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Hi Jon,

The parts that you have is CY15V104QN is 4Mbit, SPI part. We checked it internally via the top marking (silkscreen you provided earlier). It is not possible that these samples are for CY15V104QSN-108SXIES.

Thanks and Regards,

Pradipta.

Anonymous
Not applicable

Thanks for confirming. We will make sure we populate the QSN parts next time.

Best regards,

Jon

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