{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C138-25JC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C138-25JC","canonicalUrl":"https://icboms.com/infineon/CY7C138-25JC","factsUrl":"https://icboms.com/api/mcp/products/CY7C138-25JC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C138-25JC, 32Kbit dual-port asynchronous SRAM, 25 ns access, 4.5–5.5 V supply, 4K×8 organization, 68-PLCC (J-lead) surface-mount, 0–70 °C commercial temp.","salesMarkdown":"The Cypress CY7C138-25JC is a 32Kbit dual-port asynchronous SRAM organized as 4K×8, with a 25 ns access time and a parallel memory interface. It operates from a 4.5 V to 5.5 V supply within the commercial temperature range of 0 °C to 70 °C. Housed in a 68-pin PLCC (J-lead) surface-mount package, this part is designed for systems requiring two independent ports to access a shared memory array without bus-turnaround dead cycles — common in multiprocessor buffers, DSP-to-host mailboxes, and FIFO replacement in legacy telecom or industrial controller cards. ## Obsolete — sourcing reality for the BOM line","metaTitle":"Cypress CY7C138-25JC Dual-Port SRAM, 32Kbit, 25 ns","metaDescription":"Cypress CY7C138-25JC 32Kbit dual-port asynchronous SRAM, 25 ns access, 4.5–5.5 V, 0–70 °C. Obsolete — sourced to order against RFQ via independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C138-25JC","Package":"Tube","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"25 ns","Memory Size":"32Kbit","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":"CY7C138","Memory Organization":"4K x 8","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/d2d253de368a641aaee251175704fa9f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C138-25JC/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C138-25JC obsolete?","answer":"Yes, the CY7C138-25JC is officially obsolete. No last-time-buy window remains, and no direct production replacement is available. It must be sourced through independent surplus and broker channels."},{"question":"What is the operating temperature range of CY7C138-25JC?","answer":"The CY7C138-25JC is rated for commercial temperature operation from 0 °C to 70 °C. It is not suitable for industrial or automotive environments outside this range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C138-25JC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C138-25JC 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}}