{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BN-15VXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BN-15VXI","canonicalUrl":"https://icboms.com/infineon/CY7C1399BN-15VXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15VXI","rawCanonicalId":null},"summary":{"shortDescription":"Cypress (Infineon) CY7C1399BN-15VXI, 256Kbit asynchronous SRAM, 32K x 8 organization, 15 ns access time, 3.3 V supply, 28-SOJ surface-mount, -40 to 85 °C.","salesMarkdown":"The 15 ns access time is the time from address valid to data valid on a read cycle. The write cycle time is also 15 ns. ## Obsolete – sourcing through surplus and broker channels The CY7C1399BN-15VXI is marked obsolete by Cypress (Infineon). No official successor is listed in the lifecycle record.","metaTitle":"Cypress CY7C1399BN-15VXI 256Kbit Async SRAM, 15 ns","metaDescription":"Cypress (Infineon) CY7C1399BN-15VXI 256Kbit asynchronous SRAM, 32K x 8, 15 ns access time, 3.3 V, -40 to 85 °C, 28-SOJ. 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":{"title":"CY7C1399BN-15VXI","Package":"Tube","Technology":"SRAM - Asynchronous","Access Time":"15 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-BSOJ (0.300\\\", 7.62mm Width)","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-SOJ","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0633","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/69ff54d69906280bfa12bf5ffcc96488.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15VXI/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY7C1399BN-15VXI?","answer":"No official pin-compatible second source or successor is listed in the lifecycle record. For a drop-in replacement, verify the 28-SOJ footprint and 3.3 V supply with a cross-reference search against other 32K x 8 async SRAMs in the same package."},{"question":"What compliance documentation is available for CY7C1399BN-15VXI?","answer":"The part is listed as RoHS-compliant based on the lead-free finish (VXI suffix). Full compliance declarations (RoHS, REACH) are typically available from the manufacturer's documentation portal for the base product number CY7C1399."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BN-15VXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BN-15VXI 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}}