{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1265KV18-550BZXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1265KV18-550BZXC","canonicalUrl":"https://icboms.com/infineon/CY7C1265KV18-550BZXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1265KV18-550BZXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1265KV18-550BZXC, 36Mbit QDR II+ Synchronous SRAM, 1M x 36 organization, 550 MHz clock frequency, Parallel interface, 1.7 V ~ 1.9 V supply, 165-LBGA, 0°C ~ 70°C.","salesMarkdown":"It is organized as 1M x 36 and clocks at 550 MHz over a parallel interface, which means back-to-back read-write transactions with zero dead cycles — the QDR II+ bus eliminates the turnaround penalty that standard burst SRAMs incur when switching from read to write. This part is designed for high-throughput data buffering in network switches, baseband processors, and test equipment where every nanosecond of bus idle cuts into throughput. This is not a 3.3 V or 2.5 V legacy SRAM — the power tree must already have a clean 1.8 V rail with ±100 mV regulation, or the part drops out of spec. ## Obsolete — no official successor on record Infineon lists the CY7C1265KV18-550BZXC as Obsolete. No official replacement order code is published in the lifecycle record. Any alternate must be qualified against the 550 MHz clock rate, the 1M x 36 organization, and the 165-FBGA footprint — there is no drop-in second source from Infineon on the current active roster. This SRAM is not rated for the -40°C cold start of a base station cabinet or the 85°C+ ambient inside a sealed industrial controller. If the system lives in a temperature-controlled data centre, lab, or office environment, the thermal margin is adequate. Outside that envelope, a wider-temperature QDR-family part would be needed — but those are also increasingly obsolete, so the whole class requires careful sourcing.","metaTitle":"CY7C1265KV18-550BZXC Infineon 36Mbit QDR II+ SRAM, 550 MHz","metaDescription":"CY7C1265KV18-550BZXC 36Mbit synchronous QDR II+ SRAM, 550 MHz clock, 1.7V-1.9V supply, 165-FBGA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","Technology":"SRAM - Synchronous, QDR II+","Memory Size":"36Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"165-LBGA","Product Status":"Obsolete","Clock Frequency":"550 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Base Product Number":"CY7C1265","Memory Organization":"1M x 36","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"165-FBGA (13x15)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$80.8600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/277b6dff6a1b6061a2b90de843d6cc80.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1265KV18-550BZXC/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C1265KV18-550BZXC?","answer":"No official replacement has been designated by Infineon. A full qualification against the original timing parameters is required before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1265KV18-550BZXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1265KV18-550BZXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}