{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C12451KV18-400BZC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C12451KV18-400BZC","canonicalUrl":"https://icboms.com/infineon/CY7C12451KV18-400BZC","factsUrl":"https://icboms.com/api/mcp/products/CY7C12451KV18-400BZC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C12451KV18-400BZC, 36Mbit Synchronous QDR II+ SRAM, 400 MHz clock frequency, 1M x 36 organization, Parallel interface, 1.7V–1.9V supply, 165-FBGA (13x15), 0°C to 70°C.","salesMarkdown":"It clocks at 400 MHz with a parallel interface, designed for high-bandwidth, low-latency data buffering in networking switches, routers, and telecom line cards where back-to-back read/write throughput matters. The 1.7V to 1.9V supply and 165-ball FBGA (13x15 mm) footprint place it in dense, high-speed memory subsystems. ## Obsolete — planning the replacement or last-time-buy For a production line that depends on this exact density, organization, and package, the path is either a last-time-buy from remaining distributor stock or a validated pin-compatible replacement from the same QDR II+ family — typically a higher-density or speed-binned variant that shares the 165-ball FBGA footprint and 1.7V–1.9V supply rail. ## Package and supply — what to match in a replacement The 165-ball FBGA (13x15 mm) is a specific land pattern — any replacement must share the same ball pitch and matrix to avoid a board spin. Supply voltage is 1.7V to 1.9V, which is the core rail for QDR II+ devices; a replacement must operate within that window. The parallel memory interface is fixed at 1M x 36, so the replacement must offer the same depth and width unless the system controller can be reprogrammed for a different organization.","metaTitle":"CY7C12451KV18-400BZC SRAM, 36Mbit QDR II+, 400 MHz, Obsolete","metaDescription":"Cypress CY7C12451KV18-400BZC is a 36Mbit synchronous QDR II+ SRAM, 400 MHz clock, 1M x 36 organization, 165-FBGA, 0°C to 70°C.","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":"400 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Base Product Number":"CY7C12451","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c924d156d5dab2d114aeb432773567d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C12451KV18-400BZC?","answer":"No official replacement is listed by Cypress. A functionally equivalent part would need to be a 36Mbit QDR II+ SRAM in a 165-ball FBGA package, with a 1.7V–1.9V supply and 1M x 36 organization. Check the broader QDR II+ family for a speed-binned or density-bumped variant that shares the same footprint and supply rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C12451KV18-400BZC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C12451KV18-400BZC 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}}