It looks like Altera's Flex20 is the only FPGA with build in support for instantiate high density CAM/TCAM. The Xilinx approach not as dense as Altera. I am looking for a 70x16K solutions and can't find any good one.
FLEX20 is .15 um and 5 years old.
But Altera doesn't seem to support CAM in the later Cyclone or Stratix.
Does anyone know why?
High density CAM seems like a valuable addition to the megasize FPGA we have today, especially for network device.
Almost all the CAM I seen are expensive and require over 100 pins to interface to them and cost over $40.
Would be very nice to stuff them inside a Cyclone or Spartan.
-Tony