512Kbit asynchronous SRAM — obsolete, sourced to order
The CY7C1020CV33-15ZSXE: The 15 ns access and write cycle times suit it for processor local-bus or cache-tag applications where the read latency must stay under one bus clock at moderate frequencies.
Temperature grade and supply — industrial floor to ceiling
Parallel interface with a 15 ns write cycle — the data sheet specifies word and page write timing, so the controller must hold address and data valid for the full 15 ns window.
Package — 44-TSOP II, surface-mount layout
Housed in a 44-TSOP II (0.400-inch body width, 10.16 mm), the package is a standard JEDEC outline for mid-density asynchronous SRAMs — the 0.8 mm pin pitch is hand-solderable but best reflowed with a profile peaking at 245°C peak for lead-free assemblies. Supplied in Tube format — not tape-and-reel, so pick-and-place lines need a tube feeder or manual loading for prototype runs.