450 MHz QDR II+ synchronous SRAM — what it is and where it fits
The Cypress CY7C2265KV18-450BZC is a 36Mbit QDR II+ synchronous SRAM organized as 1M x 36, clocked at 450 MHz. It uses a parallel interface and operates from a 1.7 V to 1.9 V core supply. The part comes in a 165-FBGA (13x15 mm) package and is rated for commercial temperature range of 0°C to 70°C. QDR II+ architecture delivers separate read and write data ports, eliminating bus-turnaround dead cycles — this makes it a fit for high-throughput line-card buffers, network processors, and telecom switch fabrics where back-to-back read-write throughput matters.
Lifecycle and sourcing — what the record shows
The evidence carries a lifecycle entry marked eol_hot alongside a product status of Active. This split suggests the part may be on a last-time-buy or end-of-life notice from Cypress (now Infineon). For a BOM-critical line, the safe move is to source against an RFQ through independent distribution, where availability and current pricing are confirmed at quote time. There is no official successor order code in the record. The closest functional peer is the CY7C2270XV18-600BZXC at 600 MHz, but that part is also in a 165-FBGA footprint — verify ball-map compatibility before considering a drop-in.
Temperature grade and environment
Rated 0°C to 70°C — commercial grade only. This part belongs in a climate-controlled indoor rack, not an outdoor base station or an automotive ECU. The 165-FBGA package with 1.0 mm ball pitch demands a controlled reflow profile and X-ray inspection post-solder. No AEC-Q100 qualification is on record, so it is not an option for automotive programs.