{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399B-15VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399B-15VC","canonicalUrl":"https://icboms.com/infineon/CY7C1399B-15VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399B-15VC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1399B-15VC, 256Kbit (32K × 8) asynchronous SRAM, 15 ns access, 3.0–3.6 V supply, 0–70 °C, 28-SOJ surface-mount package, tube.","salesMarkdown":"The Cypress CY7C1399B-15VC is a 256Kbit asynchronous SRAM organized as 32K words by 8 bits. It delivers a 15 ns access time from a 3.0 V to 3.6 V supply, and comes in a 28-SOJ surface-mount package. This part was designed for cache or buffer memory in embedded systems, telecom line cards, and networking equipment where a fast, byte-wide scratchpad was needed — think late-90s router control planes or printer controller buffers.","metaTitle":"Cypress CY7C1399B-15VC 256Kbit Async SRAM, 15 ns, 28-SOJ","metaDescription":"Cypress CY7C1399B-15VC 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 3.0-3.6 V supply, 0-70°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":{"Mfr":"Infineon Technologies","Series":"-","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)","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":"0°C ~ 70°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/a01599d373db306f08880242de2c1d40.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399B-15VC/alternatives.json"},"ai":{"faq":[{"question":"Who supplies CY7C1399B-15VC and how is it quoted?","answer":"We supply the CY7C1399B-15VC through independent distribution. It is quoted to order against an RFQ — availability and current pricing are confirmed at quote time, not listed here."},{"question":"What is the closest pin-compatible alternative to CY7C1399B-15VC?","answer":"A pin-compatible alternative in the same family is the CY7C1399BN-15VC, which has the same 256Kbit organization, 15 ns access, and 28-SOJ footprint. Verify the exact pinout and timing with the datasheet before substituting."},{"question":"What package does CY7C1399B-15VC come in?","answer":"The CY7C1399B-15VC comes in a 28-SOJ surface-mount package (0.300\" body width, 7.62 mm), shipped in tubes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399B-15VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399B-15VC 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}}