{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4245-10ASXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4245-10ASXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4245-10ASXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4245-10ASXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C4245-10ASXCT, 72K (4K x 18) synchronous FIFO, 100 MHz data rate, 8 ns access time, 5 V supply, 64-LQFP, commercial temperature 0°C–70°C.","salesMarkdown":"## 100 MHz synchronous FIFO for 5V logic systems The CY7C4245-10ASXCT is a 72K (4K x 18) synchronous FIFO from the CY7C series, clocking at 100 MHz with an 8 ns access time. That 100 MHz data rate means it can sustain a 100 million words-per-second transfer rate on a 5V bus, which is the key spec for buffer applications in legacy telecom or industrial controllers where the rest of the logic still runs on 5V rails. Infineon lists the CY7C4245-10ASXCT as Obsolete. For BOM lines that still call out this exact order code, the only sourcing path is through independent distribution or the spot market — we can source and quote it to order against your quantity. ## Retransmit and programmable flags for flow control This FIFO supports retransmit capability and programmable flags. Retransmit lets you re-read the same data word without a full reset — useful in packet retry schemes. Programmable flags (almost-full, almost-empty) give the system designer hysteresis-based flow control rather than relying on the full/empty flags alone. The 45 mA max supply current is modest for a 5V synchronous part. ## Commercial temperature range and 5V-only operation Supply voltage is 4.5V to 5.5V, so it is not 3.3V-compatible on the core or I/O. If your system runs on 3.3V logic, this part will need level translation or a separate 5V rail.","metaTitle":"CY7C4245-10ASXCT 72K Synchronous FIFO – Obsolete","metaDescription":"CY7C4245-10ASXCT 72K (4Kx18) synchronous FIFO, 100MHz, 8ns access, 5V supply, 64-LQFP. Obsolete – sourced per RFQ. Request 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":"Tape & Reel (TR)","Function":"Synchronous","Data Rate":"100MHz","Access Time":"8ns","Memory Size":"72K (4K 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":"7C4245","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"45mA","Supplier Device Package":"64-TQFP (10x10)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$21.7400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/faca8b5ef9cad59467323f16b05354b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order CY7C4245-10ASXCT or check stock?","answer":"The CY7C4245-10ASXCT is obsolete, so it is not stocked in volume by franchised distributors. We can source it through our independent supply network and quote it to order against your BOM quantity. Submit an RFQ with your target quantity and target price, and we will confirm availability and current pricing at quote time."},{"question":"Is CY7C4245-10ASXCT obsolete?","answer":"Yes, Infineon lists the CY7C4245-10ASXCT as Obsolete. There is no direct replacement or successor part announced."},{"question":"What is the difference between CY7C4245-10ASXCT and CY7C4245-10ASXI?","answer":"The suffix 'XCT' indicates Tape & Reel packaging, while 'XI' typically indicates a tube or tray format. The die and electrical specs are identical. The 'XCT' variant is the reeled version for automated pick-and-place assembly."},{"question":"Is CY7C4245-10ASXCT compatible with 3.3V logic?","answer":"No. The supply voltage range is 4.5V to 5.5V, and the I/O levels are 5V. Direct connection to 3.3V logic will violate input thresholds and may damage the part. Use level shifters or a separate 5V rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4245-10ASXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4245-10ASXCT 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}}