12 ns asynchronous SRAM — what the speed rating means for bus timing
The CY7C1019CV33-12ZXCT is a 1Mbit asynchronous SRAM from Infineon (formerly Cypress) organized as 128K x 8 bits. This part uses a parallel interface, meaning every address and data line is brought out to separate pins — straightforward to route but uses more board traces than a serial SRAM. Supply voltage is 3V to 3.6V, making it a native 3.3V memory — no level translation needed when paired with a 3.3V host.
Obsolete — last-time-buy and sourcing reality
Infineon lists the CY7C1019CV33-12ZXCT as Obsolete. This means the part is no longer in production and is not available through franchised distribution channels. For BOM lines that still require this exact part, the supply channel is independent distribution — surplus, new-old-stock, or broker inventory.
Package and footprint — 32-TSOP II, Tape & Reel
The Tape & Reel suffix indicates it ships on a reel, typically 13-inch diameter, for automated pick-and-place. The 32-TSOP II footprint is common across many 1Mbit asynchronous SRAMs from Cypress/Infineon and other vendors, so a PCB designed for this package can often accommodate a replacement part without a board spin — but pin compatibility must be verified per the replacement's datasheet.