{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C138-25JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C138-25JXC","canonicalUrl":"https://icboms.com/infineon/CY7C138-25JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C138-25JXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C138-25JXC, 32Kbit (4K x 8) Dual-Port Asynchronous SRAM, 25 ns access time, 4.5V-5.5V supply, 68-PLCC (J-Lead), Tray.","salesMarkdown":"## Obsolete dual-port SRAM — last-time-buy reality The CY7C138-25JXC is officially classified as Obsolete by Infineon Technologies. This means the manufacturer has ceased production and no further last-time-buy windows are open. Sourcing this part now runs through independent distribution channels — surplus inventory, broker networks, and verified stock lots. Availability and pricing are confirmed per RFQ; no ongoing factory supply exists. ## 32Kbit dual-port — 25 ns access, 4K x 8 organization Organized as 4K words by 8 bits, this asynchronous dual-port SRAM provides two independent access ports with separate address, data, and control lines — both ports can read or write any memory location simultaneously, with arbitration logic handling contention. The 25 ns access time and 25 ns write cycle define the bus timing budget: at 40 MHz equivalent, the address-to-data valid window is tight enough for mid-speed DSP or microcontroller shared-memory interfaces, but not for high-throughput video or networking buffers. ## 68-PLCC J-Lead — surface-mount footprint Housed in a 68-lead PLCC (J-Lead) package, supplier device package code 68-PLCC (24.23x24.23 mm). The J-lead gull-wing alternative is a surface-mount footprint with a 1.27 mm pitch — standard for mid-1990s through early-2000s memory designs. Supplied in Tray packaging, typical for PLCC devices destined for pick-and-place assembly. The J-lead form factor is less common in new designs but still supported by most reflow profiles.","metaTitle":"CY7C138-25JXC Infineon 32Kbit Dual-Port SRAM, 25ns, 68-PLCC","metaDescription":"CY7C138-25JXC 32Kbit (4K x 8) asynchronous dual-port SRAM, 25ns access, 4.5-5.5V, 68-PLCC. 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":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","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)","Product Status":"Obsolete","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/68b01e19fcaf3f29089c468ccd374736.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the memory organization and access time of CY7C138-25JXC?","answer":"It is a 32Kbit (4K x 8) asynchronous dual-port SRAM with a 25 ns access time and 25 ns write cycle time."},{"question":"What package does CY7C138-25JXC use?","answer":"The part is supplied in a 68-lead PLCC (J-Lead) surface-mount package, supplier device package 68-PLCC (24.23x24.23 mm), in Tray packaging."},{"question":"How can I source CY7C138-25JXC now that it is obsolete?","answer":"Submit an RFQ for current availability and pricing; quantities are lot-specific and confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C138-25JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C138-25JXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:06:21.475Z","lastPublished":"2026-07-21T02:06:21.475Z","indexable":true}}