{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C11681KV18-450BZC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C11681KV18-450BZC","canonicalUrl":"https://icboms.com/infineon/CY7C11681KV18-450BZC","factsUrl":"https://icboms.com/api/mcp/products/CY7C11681KV18-450BZC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C11681KV18-450BZC, Synchronous SRAM - DDR II+, 18Mbit (1M x 18), 450 MHz clock, Parallel interface, 1.7V–1.9V supply, 0°C to 70°C, 165-FBGA (13x15 mm), Tray.","salesMarkdown":"## 450 MHz DDR II+ — what it buys you The CY7C11681KV18-450BZC is a 18Mbit synchronous SRAM from Infineon (originally Cypress) using the DDR II+ architecture. It clocks at 450 MHz, delivering two data transfers per clock cycle on a 1M x 18 organisation. The parallel interface and 1.7V to 1.9V core supply target high-bandwidth buffer applications — think network switch packet memory, telecom line-card look-up tables, or cache for DSP arrays where every nanosecond of access latency matters. ## Obsolete — sourcing path Infineon lists the CY7C11681KV18-450BZC as Obsolete. That means the factory line is shut; no new production runs are planned. For a BOM that still calls out this exact order code, the supply route goes through independent distribution — surplus stock, last-time-buy leftovers, or broker-held inventory. Date codes will vary, and the tray quantity (standard for 165-FBGA) may not match original reel volumes. Every unit we quote is screened for authenticity and tested to the datasheet limits before shipment. No official replacement part has been announced by Infineon, so any substitution must be validated against the 450 MHz timing, 1.7V–1.9V rail, and FBGA footprint. ## 165-FBGA — board-level considerations The 165-ball FBGA (13x15 mm body) uses a standard pitch for this generation of Cypress DDR II+ SRAM. The 1.7V–1.9V supply is tighter than the older 2.5V or 3.3V families — the board regulator must hold that rail within spec under load transients. For rework, the FBGA needs a pre-bake if the moisture barrier has been breached — standard MSL handling applies.","metaTitle":"Infineon CY7C11681KV18-450BZC DDR II+ SRAM, 18Mbit, 450 MHz","metaDescription":"CY7C11681KV18-450BZC is an 18Mbit Synchronous SRAM with DDR II+ interface, 450 MHz clock, 1.7V–1.9V supply, 0°C to 70°C, 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, DDR II+","Memory Size":"18Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"165-LBGA","Product Status":"Obsolete","Clock Frequency":"450 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Base Product Number":"CY7C11681","Memory Organization":"1M x 18","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"165-FBGA (13x15)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$44.4000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e3000356f1b4e07bc1998dac7c0877f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C11681KV18-450BZC/alternatives.json"},"ai":{"faq":[{"question":"What is the best replacement for CY7C11681KV18-450BZC?","answer":"Infineon has not announced a direct pin-compatible replacement. Any alternative must match the 450 MHz clock, 1M x 18 organisation, 1.7V–1.9V supply, and 165-FBGA footprint. Validate timing closure and PCB layout before committing a new order code to the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C11681KV18-450BZC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C11681KV18-450BZC 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}}