{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4245-15AXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4245-15AXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4245-15AXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4245-15AXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C series synchronous FIFO, CY7C4245-15AXCT, 72K (4K x 18) memory, 66.7 MHz data rate, 10 ns access time, 4.5 V to 5.5 V supply, 64-LQFP, 0°C to 70°C.","salesMarkdown":"## Synchronous FIFO for data buffering — 72K x 18 at 66.7 MHz The Cypress CY7C4245-15AXCT is a synchronous FIFO memory from the CY7C series, organized as 4K x 18 bits (72K total). It is designed for high-speed data buffering in applications that require a first-in, first-out data queue with minimal latency. The part supports a 66.7 MHz data rate and a 10 ns access time, making it suitable for bridging data-rate mismatches or temporary storage in telecom, networking, and industrial control systems. The 66.7 MHz clock rate allows one 18-bit word per cycle. The 10 ns access time defines the setup-and-hold budget on the downstream bus. ## Depth and width expansion — daisy-chaining multiple FIFOs This FIFO supports both depth and width expansion, so multiple CY7C4245-15AXCT devices can be cascaded to build larger buffer arrays — for example, wider data words by paralleling devices, or deeper queues by chaining them in series. The retransmit capability allows re-reading data from the FIFO without a full reset, useful in packet-retry or error-recovery schemes. Programmable flags give the system designer control over almost-full/almost-empty thresholds, reducing host polling overhead. ## 64-LQFP footprint — surface-mount assembly notes Housed in a 64-LQFP package (14x14 mm body,), this is a standard fine-pitch surface-mount part. The 64-TQFP (14x14) supplier device package is the same footprint — the LQFP and TQFP designations are often interchangeable in practice, but confirm the exact land pattern against the datasheet.","metaTitle":"Cypress CY7C4245-15AXCT 72K Synchronous FIFO, 66.7 MHz","metaDescription":"Cypress CY7C4245-15AXCT synchronous FIFO: 72K (4K x 18), 66.7 MHz data rate, 10 ns access time. 64-LQFP, 0°C to 70°C. 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":"66.7MHz","Access Time":"10ns","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":"$19.9300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/faca8b5ef9cad59467323f16b05354b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C4245-15AXCT still available for purchase?","answer":"Because the part is obsolete, it is not stocked in fresh factory inventory; instead, it is sourced from surplus or broker stock. Submit an RFQ for current options."},{"question":"What does the T suffix in CY7C4245-15AXCT mean?","answer":"The 'T' suffix in this Cypress order code typically indicates Tape & Reel packaging. The 'AX' portion refers to the 64-LQFP package, and '15' denotes the speed grade (10 ns access time)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4245-15AXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4245-15AXCT 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}}