{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4245-10AXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4245-10AXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4245-10AXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4245-10AXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4245-10AXCT, Series CY7C, Synchronous FIFO, 100 MHz data rate, 8 ns access time, 72K (4K x 18) memory, 4.5 V ~ 5.5 V supply, 64-LQFP package, 0°C~70°C operating temperature.","salesMarkdown":"## What this FIFO does on the board The Cypress CY7C4245-10AXCT is a synchronous FIFO (first-in, first-out) memory buffer from the CY7C series, organized as 4K words by 18 bits for a total capacity of 72 Kbits. It clocks data in and out at up to 100 MHz with an 8 ns access time, making it suitable for high-speed data buffering between asynchronous clock domains or across a backplane. It supports depth and width expansion, retransmit capability, and programmable flags — features that simplify flow control in a multi-FIFO design. ## 100 MHz clock — what it buys you A 100 MHz synchronous interface means the FIFO can accept or deliver one 18-bit word every 10 ns, assuming no flag stalls. That throughput suits it for buffering data from a fast ADC, a parallel bus, or a DSP link where the source and sink run on different clock domains. The 8 ns access time from the read clock edge to data-valid leaves roughly 2 ns of setup margin at 100 MHz — tight but workable with controlled-impedance traces and short stub lengths on the board. Cypress has discontinued production, and no last-time-buy window is indicated in the available records. ## Supply and temperature — fit check For a cold-start or outdoor deployment, a wider-temperature variant would be needed.","metaTitle":"CY7C4245-10AXCT Synchronous FIFO, 100 MHz, 72K, 64-LQFP","metaDescription":"CY7C4245-10AXCT synchronous FIFO from Cypress: 100 MHz data rate, 72K (4K x 18) memory, 8 ns access time, 4.5V-5.5V supply, 64-LQFP.","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 (14x14)","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":"What is the replacement for CY7C4245-10AXCT?","answer":"For a new design, look for a pin-compatible synchronous FIFO in the CY7C family with the same 64-LQFP footprint and 5 V supply. Our sourcing team can help identify a cross-reference if you provide the application details."},{"question":"Can CY7C4245-10AXCT be used in 3.3V systems?","answer":"No. Operating it at 3.3 V is outside the rated specification and would not guarantee correct logic levels or timing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4245-10AXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4245-10AXCT 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}}