What this SRAM does in your design
The part comes in a 44-TSOP II surface-mount package. This is a volatile memory — data is retained only while power is applied.
For a processor or FPGA memory controller running at, say, 50 MHz (20 ns cycle), this part leaves about 5 ns of margin for address decode, trace delay, and setup time — tight but workable with careful PCB layout. If your controller runs faster than 66 MHz, you will need a pipelined or synchronous SRAM instead.
No new production is planned. The available stock is held by independent distributors and surplus channels. Verify the exact suffix for RoHS and tape-and-reel compatibility before substituting.
The 44-TSOP II package is a standard JEDEC footprint for 16-bit wide SRAMs, compatible with many legacy and current designs.