{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C425-20JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C425-20JXC","canonicalUrl":"https://icboms.com/infineon/CY7C425-20JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C425-20JXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C425-20JXC, Series CY7C, Asynchronous FIFO, 9K (1K x 9) memory, 20ns access time, 50MHz data rate, 4.5V~5.5V supply, 32-PLCC, 0°C~70°C.","salesMarkdown":"## Asynchronous FIFO with 20 ns access — a legacy workhorse in 32-PLCC The Cypress CY7C425-20JXC is a 9K (1K x 9) asynchronous FIFO memory with a 20 ns access time and 50 MHz data rate. In an asynchronous system, this timing must fit within the host controller's setup-and-hold budget. The 50 MHz data rate means the FIFO can sustain a 50 million word/second transfer when both read and write clocks are active, assuming FIFO fullness does not stall either side. The part is uni-directional (data flows one way through the FIFO), which is typical for rate-matching between a fast ADC and a slower bus, or between two clock domains in a telecom line card. ## Obsolete — sourcing reality for CY7C425-20JXC The CY7C425-20JXC is listed as obsolete. No official replacement or second-source alternate is documented.","metaTitle":"CY7C425-20JXC Cypress Asynchronous FIFO, 9K, 20ns Access","metaDescription":"CY7C425-20JXC Cypress 9K (1K x 9) asynchronous FIFO. 20ns access time, 50MHz data rate. 32-PLCC. Obsolete — sourced to order against RFQ. 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":"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":"7C425","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"55mA","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/d1b3aa501e8d01556d95a050d492892d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C425-20JXC obsolete?","answer":"Yes, the CY7C425-20JXC is obsolete. No official replacement is listed. It is sourced through independent distribution on an RFQ basis."},{"question":"Where can I buy CY7C425-20JXC?","answer":"We source CY7C425-20JXC to order against an RFQ. Availability and current pricing are confirmed at quote time through our independent supply network."},{"question":"What is the access time of CY7C425-20JXC?","answer":"The access time is 20 ns, with a maximum data rate of 50 MHz."},{"question":"What is the memory size of CY7C425-20JXC?","answer":"The memory size is 9K bits organized as 1K x 9 bits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C425-20JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C425-20JXC 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}}