The Infineon CY7C1021CV33-15ZSXAT is a 1Mbit asynchronous SRAM organized as 64K words by 16 bits, accessed through a parallel interface.
For a microcontroller or DSP with a 50 MHz external bus, the 15 ns window leaves about 5 ns of slack after address decode and data setup, which simplifies timing closure on a two-layer board without series termination.
Obsolete status and sourcing reality
Infineon lists the CY7C1021CV33-15ZSXAT as Obsolete. Sourcing is limited to the independent market — surplus inventory, broker networks, and verified stock from prior production runs.
