Fast SRAM prioritizes access time and works well as a direct interface cache or expansion memory for high-speed processors. With smaller process nodes, embedded cache is a limiting factor and external caches become more important.
We carry Fast SRAM from the following manufacturers:
1MB - 32Mb
8 / 10 / 12ns 
commercial, industrial and automotive grades
x8, x16
1.8V, 3V, 5V 
28 STSOP (SOP/ DIP), 32 STSOP, 44 TSOP