Question about TSMC memory

[devop]

Hi All
I have question about the TSMC 013 RAM,
It seems here are two RAMS , one called SRAM (such as ra2sh) and the other one called “Register File”(such as rf2sh). What’s the difference of these two blocks?


Best Regards
Devop

 

[jbeniston]

In practice, rf2sh can only be used to generate very small memories. ra2sh should be used for larger memories.

I think the column mux settings are lower for rf2sh compared to ra2sh. Use rf2sh if you need very fast memories and it is able to generate them.

 

[devop]

Thanks a lot Jbeniston

I have a other quesiton about the rf2sh and ra2sh
rf2sh not have layer 50(DMSRM) and the ra2sh has that , why they are different ?

 

[devop]

anyone can help ~~~