{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4421-10JXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4421-10JXCT","canonicalUrl":"https://icboms.com/infineon/CY7C4421-10JXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C4421-10JXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4421-10JXCT synchronous FIFO, 100 MHz data rate, 8 ns access time, 576 (64 x 9) memory size, 4.5 V ~ 5.5 V supply, 32-PLCC (J-Lead), 0°C~70°C operating temperature, Tape & Reel.","salesMarkdown":"The Cypress CY7C4421-10JXCT is a synchronous FIFO memory from the CY7C series, organized as 64 words by 9 bits (576 bits total). The part is uni-directional, supports depth and width expansion, and includes programmable flags — but no retransmit or FWFT (First-Word Fall-Through) capability. Typical applications include data buffering in telecom line cards, networking equipment, and high-speed data acquisition systems where a moderate-depth synchronous buffer is needed at 5 V logic levels. ## 100 MHz clock and 8 ns access — timing margin in the system The 100 MHz data rate sets the maximum write/read cycle frequency. In a 100 MHz system (10 ns period), the 8 ns access leaves 2 ns of setup margin for the receiving device — tight, so board trace length and loading need attention. ## 32-PLCC footprint and surface-mount assembly The 32-PLCC (J-Lead) package measures 11.43 x 13.97 mm (supplier device package). The J-Lead form factor is common for PLCC sockets or direct solder; reflow profile follows standard JEDEC for PLCC.","metaTitle":"CY7C4421-10JXCT Synchronous FIFO, 100MHz, 8ns","metaDescription":"Cypress CY7C4421-10JXCT synchronous FIFO memory: 100 MHz data rate, 8 ns access time, 576-bit (64 x 9) depth, 32-PLCC, 0°C to 70°C.","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":"576 (64 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":"7C4421","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/3e0a4842c41a8f06c02d8bb2419fe6f1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C4421-10JXCT?","answer":"The CY7C4421-10JXCT is obsolete from the manufacturer. We source it through independent distribution and broker channels. Submit an RFQ — we confirm availability and current pricing at quote time."},{"question":"Is CY7C4421-10JXCT obsolete?","answer":"Yes, the CY7C4421-10JXCT is listed as obsolete by Cypress (Infineon). No factory last-time-buy window remains. Sourcing is through the surplus market only."},{"question":"What is the replacement for CY7C4421-10JXCT?","answer":"For a new design, evaluate current-production synchronous FIFOs from the CY7C series or a pin-compatible alternative from another vendor. For existing BOMs, the only option is surplus-channel procurement of the exact CY7C4421-10JXCT."},{"question":"What are the specifications of CY7C4421-10JXCT?","answer":"Supports depth and width expansion, programmable flags. No FWFT or retransmit."},{"question":"Is CY7C4421-10JXCT a synchronous FIFO?","answer":"Yes, the CY7C4421-10JXCT is a synchronous FIFO — it uses a free-running clock for both read and write operations, with the data registered on the clock edge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4421-10JXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4421-10JXCT 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}}