{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C425-20VXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C425-20VXC","canonicalUrl":"https://icboms.com/infineon/CY7C425-20VXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C425-20VXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C425-20VXC asynchronous FIFO, 9K (1K x 9), 20 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 0°C–70°C, 28-SOJ package.","salesMarkdown":"The Cypress CY7C425-20VXC is a 9K (1K x 9) asynchronous FIFO memory in a 28-SOJ surface-mount package. Designed for buffering data between asynchronous clock domains, it is commonly used in telecom, networking, and data-acquisition systems where a simple, unidirectional FIFO with depth and width expansion capability is needed. The part includes retransmit capability but does not support FWFT or programmable flags. In a system clocked at 50 MHz (20 ns period), this leaves zero margin for setup time on the receiving device — the bus timing is tight. A designer should verify the receiving device's setup-time requirement against the FIFO's access time plus any PCB trace delay. For relaxed timing, a slower data rate or a FIFO with a faster access time would be needed. Sourcing is limited to the independent distribution market — new-old-stock, surplus, or verified broker inventory. Any replacement would require a pin-compatible FIFO from another vendor or a redesign with a newer FIFO family. For an existing BOM line, the only reliable supply path is through a qualified independent distributor who can source and verify the original Cypress die. ## Package and supply — design-in notes Maximum supply current is 55 mA. The part is unidirectional and supports depth and width expansion via external logic.","metaTitle":"CY7C425-20VXC Asynchronous FIFO, 20 ns Access, 9K (1K x 9)","metaDescription":"Cypress CY7C425-20VXC asynchronous FIFO, 9K (1K x 9) memory, 20 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 0°C–70°C. Request quote.","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":"Tube","Function":"Asynchronous","Data Rate":"50MHz","Access Time":"20ns","Memory Size":"9K (1K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"28-BSOJ (0.300\\\", 7.62mm Width)","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)":"55mA","Supplier Device Package":"28-SOJ","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 are the specifications of CY7C425-20VXC?","answer":"Key specifications: 9K (1K x 9) asynchronous FIFO, 20 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 0°C–70°C operating temperature, 28-SOJ package, 55 mA max supply current, retransmit capability, no FWFT or programmable flags."},{"question":"What is the replacement for CY7C425-20VXC?","answer":"Cypress has not published an official replacement for the CY7C425-20VXC. For a pin-compatible alternative, review other 1K x 9 asynchronous FIFOs in the CY7C family or consider a newer FIFO from a different vendor — but no direct drop-in is confirmed. A redesign may be necessary."},{"question":"What is CY7C425-20VXC used for?","answer":"It is used as a buffer between asynchronous clock domains in telecom, networking, and data-acquisition systems — for example, to match data rates between a fast ADC and a slower processor bus, or to queue packets in a communication link."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C425-20VXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C425-20VXC 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}}