{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4251-15AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4251-15AXC","canonicalUrl":"https://icboms.com/infineon/CY7C4251-15AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C4251-15AXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C series synchronous FIFO, CY7C4251-15AXC, 72K (8K x 9) memory, 66.7 MHz data rate, 10 ns access time, 32-TQFP package, tube.","salesMarkdown":"## Synchronous FIFO — 72K x 9, 66.7 MHz The CY7C4251-15AXC is a 72K (8K x 9) synchronous FIFO from Infineon's CY7C series, clocked at 66.7 MHz with a 10 ns access time. This is a depth- and width-expandable FIFO with programmable flags, but it does not support FWFT (First-Word Fall-Through) or retransmit capability. The bus is unidirectional. ## Package and temperature grade Housed in a 32-TQFP (7x7 mm) surface-mount package, the CY7C4251-15AXC is rated for commercial temperature range (0°C to 70°C). Infineon lists this part as obsolete. Sourcing is through independent distribution — quantities are lot-specific and confirmed at RFQ. The 32-TQFP footprint is standard, so a board spin is not required for a drop-in replacement if a functionally equivalent FIFO is selected.","metaTitle":"Infineon CY7C4251-15AXC 72K Sync FIFO, 66.7MHz","metaDescription":"CY7C4251-15AXC synchronous FIFO, 72K (8K x 9), 66.7 MHz data rate, 10 ns access, 32-TQFP. Obsolete — sourced to order. Request a quote.","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":"66.7MHz","Access Time":"10ns","Memory Size":"72K (8K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-TQFP","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-TQFP (7x7)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b0115a44e89566724ee3f49375c67cf8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C4251-15AXC/alternatives.json"},"ai":{"faq":[{"question":"What is the lead time for CY7C4251-15AXC?","answer":"Lead time is confirmed at quote time against your BOM quantity. Since this is an obsolete part, stock is lot-specific and sourced through independent distribution. Submit an RFQ for current availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4251-15AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4251-15AXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:19:30.352Z","lastPublished":"2026-07-21T02:19:30.352Z","indexable":true}}