Dear Community and Intel/Altera,
Based on my understanding, the automotive range EPCQ devices are not not available. The recommended operating temperature range of EPCQ devices would be -40C to 85C.Are you going to configure the FPGA at 125C by using the EPCQ device?
I think for FPGA < gen10 it is easy to replace AS flash and then find other grades (and much lower prices).EPCS replacement: http://fpgaforum.blogspot.de/2006/03/any-replacement-for-altera-epcs_19.html EPCQ replacement: http://fpgaforum.blogspot.de/2015/06/any-replacement-for-altera-epcq-devices.html N25Q256A13ESF40G (EPCQ256 replacement) works fine for me with Arria V (ASx1 for me, but ASx4 probably works too). Or S25FL164K0XMFI00 (EPCS64 replacement) with older FPGA. I just disabled EPCX ID check and everything works. But for gen 10 FPGAs, I don't know much yet about EPCQ-L. In the past with SOIC packages it was easy to unsolder and try parts, but now with this FBGA24 package, it will be harder... As EPCQ-L models cost ~40€ to 170€, I guess alternatives already exists ! ps: official spansion/cypress confirmation in this doc "Connecting Cypress SPI Flash to Configure Altera FPGAs" http://www.cypress.com/file/195256/download