{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BN-15ZXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BN-15ZXIT","canonicalUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXIT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C1399BN-15ZXIT asynchronous SRAM, 256Kbit, 32K x 8, 15 ns access time, 3V-3.6V supply, -40°C to 85°C, 28-TSSOP, Tape & Reel.","salesMarkdown":"## 15 ns access, 32K x 8 — obsolete but spec-mapped The CY7C1399BN-15ZXIT is a 256Kbit asynchronous SRAM organized as 32K words by 8 bits, with a 15 ns access time that sets the read-cycle floor for the bus it serves. The parallel interface and 28-TSSOP (11.80 mm width) footprint match legacy controller buses and board layouts that cannot migrate to a serial memory without a board spin. ## EOL — sourcing through independent channels Available inventory is held by independent distributors and surplus channels. Each lot is date-code verified and traceable; quantities are confirmed at RFQ time, not before. For a BOM that still calls out this exact 32K x 8 asynchronous SRAM in the 28-TSOP I package, the only sourcing path is the open market — no pin-compatible drop-in replacement is published by the OEM.","metaTitle":"Infineon CY7C1399BN-15ZXIT Async SRAM, 256Kbit, 15ns","metaDescription":"Obsolete Infineon CY7C1399BN-15ZXIT 256Kbit asynchronous SRAM, 32K x 8, 15 ns access, 3V-3.6V, -40°C to 85°C. Sourced to order against RFQ.","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":"Tape & Reel (TR); Cut Tape (CT)","Technology":"SRAM - Asynchronous","Access Time":"15 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.465\\\", 11.80mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"CY7C1399","Memory Organization":"32K x 8","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"28-TSOP I","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cdd816e7919cf2b1b9abd2a77627959c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXIT/alternatives.json"},"ai":{"faq":[{"question":"What is the access time and memory organization of this SRAM?","answer":"The CY7C1399BN-15ZXIT has a 15 ns access time and is organized 32K x 8 (256Kbit total). The 15 ns figure governs the minimum read-cycle time on the parallel bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BN-15ZXIT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:07:43.092Z","lastPublished":"2026-07-21T02:07:43.092Z","indexable":true}}