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Altera_Forum
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18 years ago

CIII / Configuration

Hi, I have a cyclone EP3C10F256C8 and configuration flash EPCS4SI8N. I have 2 of 10 boards which won't configure. All the signals are present: DCLK coming from the FPGA, CS, ASDI, and DATA co...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

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I have a cyclone EP3C10F256C8 and configuration flash EPCS4SI8N.

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Does the EP3C10F256C8 have an N postfix? i.e. is it a lead free part? The Flash you mention is a lead fre part

Mixing Lead Free and Leaded parts needs careful control at assembly.

I only say that because I have worked on a mixed board and seen signal integrity problems on some PCBs due to incorrect solder temperatures.

From the Altera website:

Q: Can I use both leaded and RoHS-compliant parts on the same board?

A: Yes, both leaded and RoHS-compliant parts can be used on the same board. There are high-volume consumer products that are currently using both types of packages. However, using both lead and RoHS-compliant parts together will add to the complexity of the manufacturing process. Altera does not recommend this design for volume production.

Might be worth checking with the PCB assembler.