{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C139-25JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C139-25JXC","canonicalUrl":"https://icboms.com/infineon/CY7C139-25JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C139-25JXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C139-25JXC, 36Kbit (4Kx9) dual-port asynchronous SRAM, 25 ns access time, 4.5–5.5V supply, 68-PLCC J-lead surface-mount, 0–70°C commercial.","salesMarkdown":"## Dual-port SRAM for shared-memory handoff The CY7C139-25JXC is a 36Kbit dual-port asynchronous SRAM organized as 4K words by 9 bits. Two independent ports with separate address, data, and control lines let two bus masters read or write the same memory array without external arbitration logic. The 25 ns write cycle time (word, page) matches the read side.","metaTitle":"Cypress CY7C139-25JXC 36Kbit Dual-Port SRAM, 25 ns","metaDescription":"Cypress CY7C139-25JXC 36Kbit (4Kx9) dual-port asynchronous SRAM, 25 ns access time, 4.5–5.5V, 68-PLCC, 0–70°C. 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":"CY7C139-25JXC","Package":"Tray","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"25 ns","Memory Size":"36Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"68-LCC (J-Lead)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C139","Memory Organization":"4K x 9","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"68-PLCC (24.23x24.23)","Write Cycle Time - Word, Page":"25ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/663103db3ada4fb21146106237e0aaa7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C139-25JXC/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy CY7C139-25JXC and how do I get a price?","answer":"CY7C139-25JXC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate."},{"question":"What is the closest pin-compatible alternative to CY7C139-25JXC in this component family?","answer":"No official pin-compatible successor or second-source alternate is documented in the lifecycle record. Any alternative would require a footprint or timing re-evaluation."},{"question":"What is CY7C139-25JXC's listed package?","answer":"The CY7C139-25JXC is supplied in a 68-lead PLCC (J-lead) surface-mount package, 24.23 mm body, in tray packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C139-25JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C139-25JXC 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}}