{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4261-10JC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4261-10JC","canonicalUrl":"https://icboms.com/infineon/CY7C4261-10JC","factsUrl":"https://icboms.com/api/mcp/products/CY7C4261-10JC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4261-10JC, Series CY7C, Synchronous FIFO, 100 MHz data rate, 8 ns access time, 144 Kbit (16K x 9), 4.5 V ~ 5.5 V supply, 0°C ~ 70°C, 32-PLCC (J-Lead).","salesMarkdown":"The Cypress CY7C4261-10JC is a synchronous FIFO memory in the CY7C series, organized 16 K x 9 bits (144 Kbit total). It clocks at 100 MHz with an 8 ns access time, meaning the read data appears on the bus within one clock cycle of the read enable — no wait states needed at that speed for most glue logic. The 9-bit width accommodates an extra parity or tag bit alongside an 8-bit data byte, a common requirement in telecom framers and data acquisition buffers. It supports depth and width expansion, so multiple devices can cascade for larger buffers without external arbitration logic. Programmable flags are available for almost-full/almost-empty thresholds, giving the system designer control over flow control hysteresis. ## 32-PLCC footprint and commercial temperature range Housed in a 32-lead PLCC with J-leads (supplier package 32-PLCC, 11.43 x 13.97 mm body), this is a surface-mount package that can also be socketed for prototyping or field upgrades. This means the part is no longer manufactured and is not available through franchised distribution channels. We can quote the CY7C4261-10JC against an RFQ, confirming availability and current pricing at quote time.","metaTitle":"CY7C4261-10JC Synchronous FIFO, 100 MHz, 8 ns, 144 Kbit","metaDescription":"Cypress CY7C4261-10JC synchronous FIFO: 100 MHz data rate, 8 ns access time, 144 Kbit (16K x 9), 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":"Tube","Function":"Synchronous","Data Rate":"100MHz","Access Time":"8ns","Memory Size":"144K (16K 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":"7C4261","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":"$35.5400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0bec344832e9c4ea17507fc23bac01c0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the CY7C4261-10JC or find a distributor with stock?","answer":"The CY7C4261-10JC is obsolete and no longer available through franchised distributors. It can be sourced through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4261-10JC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4261-10JC 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}}