Marking codes of CY10CL040YF484

Hi Suvarna,
 

Thank you for providing the device photographs.

Both devices show the same ordering code, 10CL040YF484I7G, but have different corporate logos and trace/lot markings. These visual differences alone are not sufficient to determine whether a device is faulty or counterfeit.

For devices purchased directly through Mouser’s authorized channel, please retain the invoice and packing-list traceability. For devices from the other vendor, please confirm that the supplier is an authorized distributor and request its certificate of conformance or traceability documents.

The reported JTAG and Active Serial symptoms do not by themselves indicate a device defect. Please perform the following checks:

• Run JTAG Auto Detect/read the device ID and provide the complete Quartus Programmer log, Quartus version, download-cable model, and JTAG frequency.
• Verify the FPGA power rails, JTAG signal integrity, Bank 1 VCCIO/reference voltage, MSEL settings, nCE, nCONFIG, nSTATUS, and CONF_DONE.
• For AS operation, verify the programming file and flash-device selection, as well as the nCSO, DCLK, ASDO, and DATA0 connections.
• If possible, test both units on the same known-good board with the same programming file and cable.

If the Mouser units consistently fail while a known-good lot passes under identical conditions, please contact Mouser for RMA support.

Regards,
Fakhrul