{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C425-10AXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C425-10AXCT","canonicalUrl":"https://icboms.com/infineon/CY7C425-10AXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C425-10AXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C425-10AXCT, Series CY7C, asynchronous 1K×9 FIFO memory, 50 MHz data rate, 10 ns access time, 4.5–5.5 V supply, 85 mA max, 32-TQFP, retransmit capable.","salesMarkdown":"The CY7C425-10AXCT: The 10 ns access time sets the window for the read-enable-to-data-valid timing; at 50 MHz the write cycle is 20 ns, so the 10 ns access gives roughly half a cycle for the read side to settle before the next edge. The 9-bit width (8 data plus one parity bit) suits designs that need a parity lane without a second device. The 32-TQFP (7x7 mm) package is a surface-mount footprint common for mid-density FIFOs. Cypress lists the CY7C425-10AXCT as Obsolete. No last-time-buy window or successor part is recorded in the official lifecycle data. Stock that surfaces now comes from distributor overstock or end-of-life buy lots; date-code verification and basic parametric screening (access time, supply current) are recommended before committing to a production run. ## Retransmit capability and expansion The device supports retransmit — a feature that lets the read pointer reset to the beginning of the stored data without a full FIFO reset, useful in packet retry or error-recovery flows. Expansion is depth- and width-expandable, meaning multiple CY7C425-10AXCTs can be cascaded for larger buffers (wider data words or deeper queues) using external logic. No FWFT (First-Word Fall-Through) or programmable flags are supported; flag logic is fixed (empty, full, half-full, and retransmit). This limits the CY7C425-10AXCT to indoor, temperature-controlled equipment — telecom line cards, test equipment, industrial controllers in conditioned cabinets, and similar environments where the ambient stays within the commercial window. Not suitable for outdoor, under-hood, or extended-temperature industrial zones without active thermal management.","metaTitle":"Cypress CY7C425-10AXCT Asynchronous FIFO, 1Kx9, 10ns, 50MHz","metaDescription":"Cypress CY7C425-10AXCT asynchronous FIFO memory, 1K x 9, 10 ns access time, 50 MHz data rate, 4.5-5.5 V supply, 85 mA max, 32-TQFP. Obsolete.","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":"Asynchronous","Data Rate":"50MHz","Access Time":"10ns","Memory Size":"9K (1K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-TQFP","Product Status":"Obsolete","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C425","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"85mA","Supplier Device Package":"32-TQFP (7x7)","Programmable Flags Support":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1b3aa501e8d01556d95a050d492892d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY7C425-10AXCT?","answer":"The official lifecycle record does not list a direct pin-compatible successor. Within the same Cypress CY7C asynchronous FIFO family, the CY7C42x series shares the same 32-TQFP footprint and 1K x 9 depth, but pin assignments and flag logic may differ. A cross-reference check against the specific datasheet is needed before substituting."},{"question":"How do I get current pricing and availability for CY7C425-10AXCT?","answer":"Submit a request for current stock position and price; lead time depends on the lot size and date-code requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C425-10AXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C425-10AXCT 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}}