{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4245-15JXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4245-15JXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4245-15JXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4245-15JXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C4245-15JXCT, series CY7C, synchronous FIFO memory, 72K (4K x 18), 66.7 MHz data rate, 10 ns access time, 4.5 V – 5.5 V supply, 0°C – 70°C, 68-PLCC (J-Lead), Tape & Reel.","salesMarkdown":"## Synchronous FIFO – 66.7 MHz, 4K x 18, 68-PLCC The CY7C4245-15JXCT is a synchronous FIFO memory with a 4K x 18 organization, clocked at 66.7 MHz and delivering a 10 ns access time. This part belongs to the CY7C series and is housed in a 68-lead PLCC (J-Lead) package, supplier device package 68-PLCC (24.23x24.23). The synchronous architecture uses a free-running clock for data transfer, which simplifies the interface in high-speed data buffering applications. This means the manufacturer has discontinued regular production and no last-time-buy window is open. For a BOM line that requires this exact order code, sourcing is limited to independent distribution and the open market. ## Key Parametrics for Bus Timing and Expansion The 66.7 MHz data rate sets the maximum throughput at 66.7 million 18-bit words per second – about 1.2 Gbps. Depth and width expansion are supported, so multiple CY7C4245-15JXCT devices can be cascaded to build larger FIFO arrays. Programmable flags (almost-full, almost-empty) give the system controller direct flow-control signals without polling the fill counter. Maximum supply current is 45 mA, which is modest for a 5 V synchronous FIFO running at 66.7 MHz. The retransmit capability allows the FIFO to re-send a block of data from the last reset boundary – useful in packet-based error recovery schemes. ## Package and Mounting – 68-PLCC (J-Lead) The 68-PLCC package with J-leads is a surface-mount footprint (24.23 mm square body).","metaTitle":"CY7C4245-15JXCT Infineon 72K Synchronous FIFO – Obsolete","metaDescription":"CY7C4245-15JXCT synchronous FIFO memory, 72K (4K x 18), 66.7 MHz data rate, 10 ns access time. Obsolete lifecycle.","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":"68-LCC (J-Lead)","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":"68-PLCC (24.23x24.23)","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":"What is the closest pin-compatible alternative to CY7C4245-15JXCT?","answer":"Within the same CY7C series, the CY7C4255 (8K x 18, 66.7 MHz, 68-PLCC) is a drop-in upgrade with double the depth. For a direct 4K x 18 replacement, look for the CY7C4245-15JI or CY7C4245-15JXC (industrial temperature grade, if needed) — verify pin-compatibility and timing before substitution."},{"question":"What is CY7C4245-15JXCT's operating temperature range?","answer":"It is rated for 0°C to 70°C (commercial temperature grade)."},{"question":"What package does CY7C4245-15JXCT use?","answer":"It comes in a 68-lead PLCC with J-leads (68-PLCC), supplier device package 68-PLCC (24.23x24.23)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4245-15JXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4245-15JXCT 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}}