I was trying to estimate the power consumption of IGLOO AGL600V2 FPGA from Actel with IGLOO power calculator (posted on Actel website). I received very astonishing results. With full logic utilization at 50 MHz, 25% toggle rate and around 100 I/Os (LVCMOS 1.8V, LVCMOS 3.3V) it consumes around 100 mW. It's about half of Xilinx Coolrunner-II consumption and a small fraction of Xilinx FPGAs (Spartan or Virtex) for same functionality. I was very surprised by this so maybe I'm missing something here. Is anybody familiar with this chip and its power consumption?
Actel IGLOO FPGA has lower power consumption then Xilinx Coolrunner-II CPLD?
Sep 03, 2007
1 Replies
Which Xilinx parts you used as a comparison point? I don't have expertise on Actel parts, but they seem to have 'quite' optimistic marketing gates readings, so comparing 250k part to 250k part might not be fair.
On a related topic - does anyone have expertise about the trade-offs of Actel's "Versa-Tiles" vs. 4/6-LUTs. It seems like obviously wastefull configuration - how many thansistors they can really share between 3-LUT and D-FF? Is there some benefit in this configuration, or is this 'design choice' made just to avoid Altera and Xilinx patents?
- Doug
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required