{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4241-15JXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4241-15JXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4241-15JXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4241-15JXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4241-15JXCT, Series CY7C, Synchronous FIFO, 66.7MHz data rate, 10ns access time, 36K (4K x 9), 4.5 V ~ 5.5 V supply, 0°C ~ 70°C, 32-PLCC (J-Lead) on Tape & Reel.","salesMarkdown":"## 66.7 MHz synchronous FIFO — what the timing numbers mean for your bus The CY7C4241-15JXCT is a Cypress synchronous FIFO from the CY7C series, organized as 4K x 9 bits (36K total). The 10 ns access time leaves about 5 ns of setup-and-hold margin at 66.7 MHz on a typical 5 V bus, enough for most 74HCT or 3.3 V-tolerant logic families, but you'll want to check the input threshold levels against your controller's I/O if mixing supply voltages. ## 36K buffer depth — sizing the FIFO for your data path With 36K bits organized as 4K words of 9 bits wide, this FIFO suits moderate-depth buffering applications — packet buffering in telecom line cards, rate-matching between asynchronous clock domains, or temporary storage in printer/imaging pipelines. The 9-bit width accommodates an 8-bit data byte plus a control/parity bit, common in older system buses. Depth expansion is supported by cascading multiple devices, and width expansion is possible by paralleling the control signals. It draws a maximum of 35 mA. If your system runs at 3.3 V, you'll need level translation on the data and control lines. ## 32-PLCC (J-Lead) package — rework and layout notes Housed in a 32-lead PLCC with J-leads (body size 11.43 x 13.97 mm), this package is socket-friendly and reworkable with standard hot-air tools. The J-lead form gives a bit of compliance for thermal cycling, and the PLCC footprint is well-documented. The Tape & Reel suffix (CT) indicates it ships on 13-inch reels, typical for automated pick-and-place. That means new-production allocations are gone; the only channel is independent distribution — surplus, new-old-stock, or broker inventory. If this part is on your BOM, you're looking at spot-market sourcing.","metaTitle":"CY7C4241-15JXCT Synchronous FIFO, 66.7MHz, 10ns, 36K","metaDescription":"CY7C4241-15JXCT Cypress synchronous FIFO: 66.7MHz data rate, 10ns access time, 36K (4K x 9) memory.","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":"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":"4.5 V ~ 5.5 V","Base Product Number":"7C4241","Operating Temperature":"0°C~70°C","Retransmit Capability":"No","Current - Supply (Max)":"35mA","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/b0115a44e89566724ee3f49375c67cf8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the direct replacement for CY7C4241-15JXCT?","answer":"For a pin-compatible drop-in, you would need to cross-reference the Cypress FIFO family datasheets or consider a current-generation synchronous FIFO from a supplier like IDT or TI that offers similar 4K x 9 depth and 66.7 MHz speed in a PLCC-32 footprint. Without a confirmed cross-reference, a redesign or socket adapter may be required."},{"question":"What are the timing specifications of CY7C4241-15JXCT?","answer":"It is a synchronous FIFO, so reads and writes occur on the clock edge with no dead cycles. It supports programmable flags and depth/width expansion, but does not support FWFT (First Word Fall Through) or retransmit capability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4241-15JXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4241-15JXCT 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}}