{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4251-10JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4251-10JXC","canonicalUrl":"https://icboms.com/infineon/CY7C4251-10JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C4251-10JXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C series Synchronous FIFO, CY7C4251-10JXC, 72K (8K x 9) memory size, 100MHz data rate, 8ns access time, 32-LCC (J-Lead) package, Tube.","salesMarkdown":"The CY7C4251-10JXC is officially obsolete per Infineon's lifecycle status. For existing BOM lines, this part is sourced through independent distribution channels — quantities are confirmed per RFQ, and no minimum order volume is assumed. ## Synchronous FIFO — 100MHz pipeline This is a synchronous FIFO organized as 8K x 9 bits (72K total), clocked at 100 MHz with an 8 ns access time — the pipeline architecture eliminates the dead cycles of asynchronous FIFOs on back-to-back reads. The 9-bit width (8 data + 1 parity/control) suits applications where a ninth bit carries a tag, command, or odd-parity check alongside the byte-wide data word. Programmable flags are supported for almost-full/almost-empty thresholds, letting the controller schedule DMA bursts before the FIFO stalls. ## Package and supply rails Rated for commercial temperature range (0°C to 70°C) — suitable for indoor equipment and controlled environments, not extended or industrial temp applications.","metaTitle":"Infineon CY7C4251-10JXC 72K Sync FIFO, 100MHz, 8ns, 32-PLCC","metaDescription":"Obsolete Infineon CY7C4251-10JXC synchronous FIFO, 72K (8K x 9), 100MHz data rate, 8ns access, 32-PLCC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"CY7C","Package":"Tube","Function":"Synchronous","Data Rate":"100MHz","Access Time":"8ns","Memory Size":"72K (8K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-LCC (J-Lead)","Product Status":"Obsolete","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C4251","Operating Temperature":"0°C ~ 70°C","Retransmit Capability":"No","Current - Supply (Max)":"35mA","Supplier Device Package":"32-PLCC (11.43x13.97)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.1400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a7b146673824ba494f9688cebdc79959.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C4251-10JXC and check availability?","answer":"The CY7C4251-10JXC is obsolete but available through independent distribution. Submit an RFQ for current pricing and lot-specific availability — quantities are confirmed at quote time, not assumed available via RFQ confirmation."},{"question":"What is the memory organization of CY7C4251-10JXC?","answer":"It is organized as 8K words by 9 bits (72K total), synchronous operation at 100 MHz with an 8 ns access time. The 9-bit width accommodates a parity or control bit alongside the byte."},{"question":"Is CY7C4251-10JXC pin-compatible with any active FIFO?","answer":"The CY7C4251-10JXC uses a 32-PLCC footprint with a 5 V supply — any replacement would require a board spin or a voltage translator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4251-10JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4251-10JXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:19:02.732Z","lastPublished":"2026-07-21T02:19:02.732Z","indexable":true}}