New-production runs are not available; any remaining stock is surplus or pulled from legacy inventory. Sourcing this part means going through independent distribution channels, where availability and pricing are confirmed only at quote time against a specific RFQ. If your BOM still calls out this exact code, qualify the alternative now — the surplus pool shrinks every quarter.
This speed grade was common in cache-tag and packet-buffer applications where every nanosecond of bus margin mattered.
32K x 16 organization and 3.3V rail
The 16-bit-wide data bus matches processors and DSPs with 16-bit external memory interfaces without needing two chips. The 512Kbit capacity (32K words) is modest by today's standards; it fits small code scratchpads, FIFO buffers, or configuration storage in legacy designs where the memory map is already fixed.
44-TSOP II footprint
The 44-pin TSOP II (0.400-inch body width, 10.16 mm) is a JEDEC-standard surface-mount package that was widely used for mid-density SRAM in the late 1990s and early 2000s. It is a gull-wing lead form, reworkable with standard hot-air tools, and the 0.8 mm pitch is forgiving for manual inspection. If your existing PCB layout uses this footprint, a pin-compatible drop-in from another vendor may exist — but verify the pinout against the CY7C1020 base number, as TSOP II pin assignments vary by density.