{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C433-15JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C433-15JXC","canonicalUrl":"https://icboms.com/infineon/CY7C433-15JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C433-15JXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C433-15JXC, Series CY7C, 4K x 9 asynchronous FIFO, 50MHz data rate, 15ns access time, 4.5–5.5V supply, 65mA max, operating 0°C to 70°C, 32-PLCC (11.43x13.97mm) J-lead, surface mount, tube pack.","salesMarkdown":"## 4K x 9 asynchronous FIFO — 15 ns access, 50 MHz data rate The CY7C433-15JXC is a 4K x 9 asynchronous FIFO from the CY7C series. The 4K x 9 organization is the key differentiator here: most FIFOs in this density class are x8 or x9, but the x9 width specifically suits applications that need an extra bit per word for out-of-band signaling or parity without doubling the chip count. This is a first-in, first-out buffer with no FWFT (First-Word Fall-Through) support, so the first word appears on the outputs only after the first read strobe following a write — a standard asynchronous handshake. Retransmit capability is included, allowing the FIFO to replay data from the beginning without a full reset, useful for packet retry in communications links. The CY7C433-15JXC is obsolete per Cypress lifecycle records. The 32-PLCC J-lead package is a legacy footprint. Given the obsolete status, buyers should expect lead times and pricing to reflect scarcity; we recommend quoting against the exact quantity and target delivery window. ## 32-PLCC J-lead — legacy footprint, rework considerations The CY7C433-15JXC comes in a 32-lead PLCC with J-bend leads (package case 32-LCC J-Lead, supplier package 32-PLCC 11.43x13.97mm). This is a surface-mount package but with a footprint that differs from modern QFP or BGA — the J-leads sit under the body, requiring a PLCC socket or a specific land pattern with via-in-pad for hand-solder or rework. For reflow, the J-lead profile is forgiving, but the PLCC body can trap flux; a no-clean flux and post-reflow inspection of the hidden solder joints is standard practice.","metaTitle":"CY7C433-15JXC Cypress 4K x 9 Async FIFO, 15ns, 50MHz","metaDescription":"Cypress CY7C433-15JXC asynchronous FIFO: 4K x 9, 15ns access, 50MHz data rate, 32-PLCC, 0-70°C. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C433-15JXC","Series":"CY7C","Package":"Tube","Function":"Asynchronous","Data Rate":"50MHz","Access Time":"15ns","Memory Size":"36K (4K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-LCC (J-Lead)","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C433","Operating Temperature":"0°C ~ 70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"65mA","Supplier Device Package":"32-PLCC (11.43x13.97)","Programmable Flags Support":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/29e2525145ef91bf674ce58bf7fd0585.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the access time of CY7C433-15JXC?","answer":"The 15 ns access means the read cycle completes within 15 ns from the read-enable edge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C433-15JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C433-15JXC 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}}