{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4241V-15JXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4241V-15JXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4241V-15JXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4241V-15JXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4241V-15JXCT synchronous FIFO, 66.7 MHz data rate, 11 ns access time, 36K (4K x 9) memory, 3 V to 3.6 V supply, 32-PLCC (J-Lead), commercial temperature 0°C to 70°C.","salesMarkdown":"## 66.7 MHz synchronous FIFO — what the data rate means for the bus The Cypress CY7C4241V-15JXCT is a synchronous FIFO in the CY7C series, organized 4K words deep by 9 bits wide (36K total). It clocks at 66.7 MHz, with 11 ns access time. ## 36K (4K x 9) — sizing the buffer for your backpressure latency The 4K x 9 organization means 4096 storage locations, each holding 9 bits — the ninth bit is often used as a parity or control flag alongside the 8-bit data byte. The depth determines how long the FIFO can absorb incoming data while the downstream device is busy or the bus is stalled. If your system's worst-case backpressure latency exceeds the time it takes to fill 4096 words at 66.7 MHz (about 61 µs), you will overflow the FIFO and lose data. The programmable flags let you set almost-full and almost-empty thresholds so the controller can throttle before overflow or underflow occurs. This part carries an official lifecycle status of Obsolete. The last-time-buy window from Cypress (now Infineon) has closed; no new factory orders are accepted. If you have an active BOM line using this FIFO, the immediate action is to qualify a pin-compatible replacement — Cypress's own synchronous FIFO family includes parts with the same 32-PLCC footprint and 3.3 V supply, though the exact density and speed grade must be verified against your timing budget. ## 32-PLCC J-Lead — footprint and rework The package is a 32-lead PLCC with J-bend leads, body size 11.43 x 13.97 mm. It is a surface-mount package but with the leads tucked under the body, so visual inspection of solder joints requires an angled view or X-ray. This restricts the part to indoor, temperature-controlled environments — office equipment, lab instruments, telecom central-office racks, and consumer electronics. It is not rated for industrial floor, automotive under-hood, or outdoor telecom cabinets where the ambient can drop below freezing or exceed 70°C.","metaTitle":"CY7C4241V-15JXCT 66.7MHz Synchronous FIFO, 36K (4K x 9)","metaDescription":"CY7C4241V-15JXCT synchronous FIFO from Cypress, 66.7 MHz data rate, 11 ns access time, 36K (4K x 9) memory, 3 V to 3.6 V supply, 32-PLCC.","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":"11ns","Memory Size":"36K (4K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-LCC (J-Lead)","Product Status":"Obsolete","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"3 V ~ 3.6 V","Base Product Number":"7C4241","Operating Temperature":"0°C~70°C","Retransmit Capability":"No","Current - Supply (Max)":"20mA","Supplier Device Package":"32-PLCC (11.43x13.97)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/06df22868d8a34fd15e9034e48ed2c13.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C4241V-15JXCT obsolete?","answer":"Yes, the CY7C4241V-15JXCT is officially obsolete. The last-time-buy window from the manufacturer has closed. It is only available through independent surplus and broker channels. For new designs or long-term production, a pin-compatible replacement must be qualified."},{"question":"Is CY7C4241V-15JXCT still available for purchase?","answer":"Because the part is obsolete, availability is limited to existing surplus stock and is confirmed at quote time, not on this page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4241V-15JXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4241V-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}}