15 ns asynchronous SRAM for 5V legacy systems
This part is a staple for 5V DSPs, microcontrollers, and legacy logic systems that need fast, byte-wide or word-wide scratchpad memory without clock management overhead.
44-SOJ footprint and surface-mount assembly
The J-lead form factor offers a compact footprint while retaining good board-level reliability for industrial environments.
Cypress (now part of Infineon) has designated the CY7C1021B-15VXI as obsolete. For BOM lines that still require this exact order code, procurement must turn to independent distribution and the surplus market.
Design-in considerations for the 5V bus
The x16 organization is convenient for 16-bit data buses — no need for external byte-lane muxing. The industrial temperature range covers most factory-floor and outdoor telecom enclosures, but not extended automotive or downhole environments.