What this 4 Mbit asynchronous SRAM brings to the bus
The Infineon CY7C1041G30-10VXI is a 4 Mbit asynchronous SRAM organized as 256K words by 16 bits. It is a parallel-interface, volatile memory part.
A 10 ns access time (address-to-data valid) is the headline rating on this part.
Package and footprint — the 44-SOJ
The CY7C1041G30-10VXI comes in a 44-SOJ package (Small Outline J-lead, 0.400" body width, 10.16 mm). The J-lead footprint is a surface-mount form factor that gives a smaller board footprint than a DIP but still allows visual inspection of solder joints. The 44-SOJ is a common pinout for 4 Mbit asynchronous SRAMs from Cypress/Infineon and ISSI, so a board layout designed for one can often take the other with no change.