{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4205-15AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4205-15AXC","canonicalUrl":"https://icboms.com/infineon/CY7C4205-15AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C4205-15AXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4205-15AXC, Series CY7C, Synchronous FIFO, 66.7 MHz Data Rate, 10 ns Access Time, 4.5 K (256 x 18) Memory, 4.5 V ~ 5.5 V Supply, 64-LQFP, 0°C~70°C.","salesMarkdown":"## Synchronous FIFO for 5 V bus buffering The CY7C4205-15AXC: Organized as 256 words by 18 bits, 4.5 K total storage. Clocks at 66.7 MHz, 10 ns access time. ## Obsolete — last-time-buy or surplus channel ## Retransmit and programmable flags This FIFO supports retransmit capability, which lets the read pointer reset to the last programmed mark without flushing the entire buffer — useful for protocol retry sequences. Programmable flags (almost-full, almost-empty) give the system early warning before the FIFO overflows or underflows, reducing the need for polling. Expansion type is depth and width, so multiple CY7C4205s can be cascaded for deeper or wider buffers without external logic. Housed in a 64-LQFP (14x14 mm body). Surface mount.","metaTitle":"CY7C4205-15AXC Cypress FIFO, 66.7MHz, 10ns, 4.5K, 64-LQFP","metaDescription":"Cypress CY7C4205-15AXC synchronous FIFO, 66.7 MHz data rate, 10 ns access time, 4.5 K (256 x 18) memory, 5 V supply, 64-LQFP. Obsolete, sourced to order.","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":"Tray","Function":"Synchronous","Data Rate":"66.7MHz","Access Time":"10ns","Memory Size":"4.5K (256 x 18)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"64-LQFP","Product Status":"Obsolete","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C4205","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"45mA","Supplier Device Package":"64-TQFP (14x14)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/faca8b5ef9cad59467323f16b05354b0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C4205-15AXC/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C4205-15AXC?","answer":"No official replacement part number is listed in the available records. For a new design, evaluate current-generation synchronous FIFOs from Cypress (Infineon) or a pin-compatible alternative in the CY7C series, verifying footprint and timing."},{"question":"Is CY7C4205-15AXC compatible with 5V systems?","answer":"Yes, the supply range is 4.5 V to 5.5 V, so it works directly in 5 V logic systems without level translation."},{"question":"What is the access time of CY7C4205-15AXC?","answer":"The access time is 10 ns, which at a 66.7 MHz clock rate provides a 5 ns timing margin for the receiving logic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4205-15AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4205-15AXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}