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Nor Flash

user_4731426
New Contributor

Hello,

We have three kinds of NOR flash device with "GL512N10FAI01" ordering part number. All devices that have "821BB437 T" and "0911VVF JJ" product date codes work properly on the card. However, devices which have "824BB509 Q" product date code do not work properly on the same card. If I need to detail the problem, we cannot write/read 8bit of 16bit Data bus of NOR flash. We could send you a sample to investigate it. This wafer lot sequence may be problematic. We need to maintain production. Although we have a lot of this devices, we have stopped the production since the devices became obsolete. Could you help us?

By the way, "0911VVF JJ" fits "YY WW A B C" product date code format in https://www.cypress.com/file/294586/download (page 11) document, but its product year(2009) is not prior to third quarter 2007. There is a conflict in marking format document.

Thanks.

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5 Replies
AlbertB_56
Employee

Hello,

Please detail from which third party distributor the S29GL512N10FAI01 with date codes "821BB437 T", "0911VVF JJ" and "824BB509 Q" were all purchased, it important to know from which distributor these devices were purchased.  

As well, please provide waveform screen captures of the "824BB509 Q" during the WRITE or READ operations.  The waveforms should include CE#, WE# (for PROGRAM) or OE# (for READ), RY/BY, ADDRESS and DATA.  These input control signals are vital during the PROGRAM and READ operations.

Please expedite...

Best regards,

Albert

Cypress Semiconductor Corp.

An Infineon Technologies Company

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AlbertB_56
Employee

Hello,

Cypress' database does not recognize the "Q" designation, as it does not exist.

Please verify and confirm the date code that is labeled on the topside of the device,

as the "Q" designation is not recognized.

Thank you in advance...

Best regards,

Albert

Cypress Semiconductor Corp

An Infineon Technologies Company 

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AlbertB_56
Employee

Hello,

Cypress' database does not recognize the "Q" designation, as it does not exist.

Please verify and confirm the date code that is labeled on the topside of the device,

as the "Q" designation is not recognized.

Please also detail, as from which third-party vendor the S29GL512N10FAI01 were purchased

Thank you in advance...

Best regards,

Albert

Cypress Semiconductor Corp

An Infineon Technologies Company

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user_4731426
New Contributor

Hello,

Devices with date code that is labeled on the topside of it  can be seen at figure. nor_flash.JPG

Moreover, devices were purchased from "PARTSMAX LLC" distributor.

Thanks.

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user_4731426
New Contributor

Hello,

Devices with date code that is labeled on the topside of it  can be seen at figure.

nor_flash.JPG

Moreover, devices were purchased from "PARTSMAX LLC" distributor.

Thanks.

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