{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BN-15ZXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BN-15ZXI","canonicalUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon (ex-Cypress) CY7C1399BN-15ZXI, 256Kbit asynchronous SRAM, 32K×8 organization, 15 ns access time, 3.3 V supply, parallel interface, 28-TSOP I package, -40°C to 85°C, tray, obsolete.","salesMarkdown":"## 256Kbit asynchronous SRAM — 15 ns, 3.3 V, 28-TSOP I The Infineon (ex-Cypress) CY7C1399BN-15ZXI is a 256Kbit asynchronous SRAM organized as 32K x 8, with a 15 ns access time and a 3V to 3.6V supply. It uses a parallel interface and comes in a 28-TSOP I package. This part is marked obsolete by Infineon. No last-time-buy window or successor is listed in the official record. Surface-mount 28-TSOP I, 0.465-inch body width, 11.80 mm. The footprint matches the JEDEC TSOP I standard; no special land pattern needed. Tray shipment — not tape-and-reel — so plan for pick-and-place feeder changeover if the line runs reels.","metaTitle":"Infineon CY7C1399BN-15ZXI 256Kbit Async SRAM, 15 ns","metaDescription":"Infineon (ex-Cypress) CY7C1399BN-15ZXI asynchronous SRAM, 256Kbit (32K x 8), 15 ns access, 3.3 V, -40 to 85°C, 28-TSOP I. Obsolete — 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":"Tray","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":"$1.3900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fef115cca883337317066bfca634e597.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXI/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY7C1399BN-15ZXI?","answer":"No official pin-compatible successor is listed by Infineon. For a drop-in replacement, review the CY7C1399BN family in the same 28-TSOP I footprint and 3.3 V supply; verify access time and temperature grade against your timing budget."},{"question":"What is the operating temperature range of CY7C1399BN-15ZXI?","answer":"Rated for -40°C to 85°C, the industrial temperature grade, suitable for outdoor enclosures, factory floors, and unheated equipment rooms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BN-15ZXI 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}}