What is the delay incurred by ternary content-addressable memory (TCAM)?
What is the cost (in terms of delay) of using TCAM? How do they compare with SRAM and DRAM?


You can't make a general statement on that at all. Ideal TCAM will let all memory cells do their mask/tag comparison in parallel. The addressing then won't actually take longer than the underlying storage cell – it just takes way more logic, and power.

Whether or not it's implemented as a fully parallel comparison, or whether there are a couple layers of indirect addressing above to keep the complexity at bay is up to your actual TCAM implementation.