FPGA Speed Grade

[RamananM]

Hi,

We are using EP3C16E144C8N FPGA in our product, we are replacing it with EP3C16E144I7N. But none of the datasheet explains about "7".

C8 is replaced with I7.

C8 is commercial, 8 is not defined, datasheet explains 6 is fastest, is the 8 is more fastest or slowest.

And I7, I is industrial, but not on 7, what it represents fast or slow.

Also what is fast and slow, is that clock speed.

Is there any issue in replacing EP3C16E144C8N with EP3C16E144I7N.

Thanks & Regards,

M.Ramanan.

[Ash_R_Intel]

Hi Ramanan,

Please refer the below screen shot from https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyc3/cyclone3_handbook.pdf?wapkw=cyclone%20III#page=24

C - Commercial Temperature grade

I - Industrial Temperature grade

6 - Fastest speed grade of the FPGA

7 - Slower than 6

8 - Slowest 

Speed grade means that the FPGA with 6 can work at faster clock frequencies than 7 and 8.

Regards 

[RamananM]

Thanks for the details.

Do you suggest EP3C16E144I7N is a replacement for EP3C16E144C8N or any other IC, we dont want have any hardware change and have pin to pin compatibility.

Thanks & Regards,

M.Ramanan.

[Ash_R_Intel]

The two parts are pin to pin compatible. No hardware change required.