The Infineon CY7C1010DV33-10ZSXIT is a 2 Mbit asynchronous SRAM organized as 256K words by 8 bits. Its 10 ns access time means the part can keep up with fast 3.3 V processors without inserting wait states in many embedded designs — the data appears on the bus within 10 ns of the address being valid, which is tight enough for most 50–100 MHz bus cycles. The parallel interface is straightforward: no clock, no refresh overhead.
Infineon has designated the CY7C1010DV33-10ZSXIT as Last Buy. That means the manufacturer has issued a final purchase window — once that closes, no more factory orders. After the Last Buy date, supply shifts entirely to the independent channel: surplus inventory, distributor stock, and broker-sourced material. If your design can tolerate a footprint change, Infineon's current-production asynchronous SRAM family (same 44-TSOP II footprint, similar speed grades) is the natural successor path — but no direct pin-compatible replacement has been announced under the same base number.
Rework note: 44-TSOP II on a production board
The 44-TSOP II is a gull-wing leaded package with 0.8 mm pitch — reworkable by hand with a hot-air station and fine-tipped iron for touch-up. The plastic body is MSL 3 typical for this family, so if the moisture-barrier bag has been open longer than the floor-life window, bake the parts at 125°C for 24 hours before reflow to avoid popcorning. The wide body (10.16 mm) gives good thermal contact with the preheater; just watch that you don't overheat the adjacent passives when removing the part.