4 Replies Latest reply on Nov 20, 2020 10:48 AM by AlbertB_56

    AM29LV640DU-90RWHI additional marking

    PaFi_3886401

      Hello friends,

       

      Can anyone help pls. What are the additional symbols above and below?

      DSCN4286.jpg

      Best regards and thank U

      Paolo

        • 1. Re: AM29LV640DU-90RWHI additional marking
          AlbertB_56

          Hello Paolo,

           

          Thank you for contacting Cypress Semiconductor.

           

          It appears you may have purchased the AM29LV640DU-90RWHI from an unauthorized distributor,

          third party vendor or reseller, as these additional markings are not recognized as valid standard

          markings from the factory.  These AM29LV640DU FLASH devices may have been refurbished or

          possibly customer returns or RMA.  There appears to be a checksum that is marked on the device.

          The checksum "CS = BCD4h"  indicates that this device has already been programmed by the

          previous user/owner of this device.

           

          The additional markings are not recognized as a valid standard markings from the factory. 

           

           

           

          Best regards,

          Albert

          Cypress Semiconductor Corp.

          An Infineon Technologies Company

          • 2. Re: AM29LV640DU-90RWHI additional marking
            AlbertB_56

            Hello Paolo,

             

            Thank you for contacting Cypress Semiconductor.

             

            It appears you may have purchased the AM29LV640DU-90RWHI from an unauthorized distributor,

            third party vendor or reseller, as these additional markings are not recognized as valid standard

            markings from the factory.  These AM29LV640DU FLASH devices may have been refurbished or

            possibly customer returns or RMA.  There appears to be a checksum that is marked on the device.

            The checksum "CS = BCD4h"  indicates that this device has already been programmed by the

            previous user/owner of this device.

             

            The additional markings are not recognized as a valid standard markings from the factory.

             

             

             

            Best regards,

            Albert

            Cypress Semiconductor Corp.

            An Infineon Technologies Company

            • 3. Re: AM29LV640DU-90RWHI additional marking
              AlbertB_56

              Hello Paolo,

               

              Thank you for contacting Cypress Semiconductor.

               

              It appears you may have purchased the AM29LV640DU-90RWHI from an unauthorized distributor,

              third party vendor or reseller, as these additional markings are not recognized as valid standard

              markings from the factory.  These AM29LV640DU FLASH devices may have been refurbished or

              possibly customer returns or RMA.  There appears to be a checksum that is marked on the device.

              The checksum "CS = BCD4h"  indicates that this device has already been programmed by the

              previous user/owner of this device.

               

              The additional markings are not recognized as a valid standard markings from the factory.

               

               

               

              Best regards,

              Albert

              Cypress Semiconductor Corp.

              An Infineon Technologies Company

              • 4. Re: AM29LV640DU-90RWHI additional marking
                AlbertB_56

                Hello Paolo,

                 

                Thank you for contacting Cypress Semiconductor.

                 

                It appears you may have purchased the AM29LV640DU-90RWHI from an unauthorized distributor,

                third party vendor or reseller, as these additional markings are not recognized as valid standard

                markings from the factory.  These AM29LV640DU FLASH devices may have been refurbished or

                possibly customer returns or RMA.  There appears to be a checksum that is marked on the device.

                The checksum "CS = BCD4h"  indicates that this device has already been programmed by the

                previous user/owner of this device.

                 

                The additional markings are not recognized as a valid standard markings from the factory.

                 

                 

                 

                Best regards,

                Albert

                Cypress Semiconductor Corp.

                An Infineon Technologies Company