Dear Community and Intel/Altera,
- i want to use your FPGAs in automotive designs (cyclone 5 and 10). I would like to use AS-Programming by a external flash chip.
- I would like to use a small chip housing, if possible
- Altera/Intel only offers ECPS, ECPQ, ECPS-A devices
- EPCQ-A seems only suitable for 85°, is sthat correct? (https://www.altera.com/documentation/sli1498107252254.html)
- EPCQ-L same problem: https://www.altera.com/documentation/wtw1396921531042.html#wtw1396921651224
- EPCQ seems good for temperature https://www.altera.com/documentation/bhc1410934512298.htm (https://www.altera.com/documentation/bhc1410934512298.html)l but all chips below 265 kbit seems to be discontinued https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/pcn/pdn1708.pdf and larger chips only be stored for 10 years. It says there will be some support for other flash in Prime 17.1 - but this is not even released yet and i cannot check what chips will be the "alternatives"
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