Wow, I'm looking at current "Open Shuttles", a license to use 4KB of SRAM in the project is $2500. But it comes with Wishbone Bus interface!

> 1024x32 Commercial SRAM > CF_SRAM_1024x32 > Commercial SRAM: 1024 words x > 32 bits (4KB) with Wishbone Bus interface > Area: 0.17mm² > GPIOs: 0 > License: Commercial - $2500 per project