{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C131-15JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C131-15JXC","canonicalUrl":"https://icboms.com/infineon/CY7C131-15JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C131-15JXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C131-15JXC, SRAM - Dual Port, Asynchronous, 8Kbit (1K x 8), 15 ns access time, Parallel interface, 4.5V ~ 5.5V supply, 0°C ~ 70°C, 52-PLCC (19.13x19.13), Tube.","salesMarkdown":"Cypress no longer produces this part, and no factory last-time-buy window remains open. ## 15 ns access time — the arbitration margin The CY7C131-15JXC is an 8Kbit (1K x 8) dual-port asynchronous SRAM from Cypress. In a dual-port arbitration scenario — where two independent bus masters (e.g., a DSP and an FPGA) share the same memory array — the 15 ns window sets the bus-turnaround margin. At a 33 MHz bus clock (30 ns period), a single access fits comfortably within one cycle; at 66 MHz (15 ns period), the access time equals the clock period, leaving zero margin for address hold or data setup. Designs running above 33 MHz should budget for one wait state or consider a faster dual-port SRAM. ## Dual-port architecture — no external arbiter needed As a dual-port SRAM, the CY7C131 integrates two independent address, data, and control ports that access a common 1K x 8 memory array. On-chip arbitration logic handles simultaneous access to the same address — the part asserts a BUSY flag on one port while the other completes the cycle. ## 52-PLCC footprint — legacy package, socket-friendly The CY7C131-15JXC comes in a 52-lead PLCC (J-lead) package, supplier device package 52-PLCC (19.13x19.13 mm). The J-lead form factor is through-hole compatible with a PLCC socket, making it suitable for prototyping, rework, and systems where field replacement is expected. The surface-mount PLCC footprint requires a standard 52-pin JEDEC land pattern. The shipping medium is Tube. ## Supply and temperature — 5 V nominal, commercial range This limits deployment to temperature-controlled indoor environments — office equipment, telecom racks, test instrumentation — and excludes automotive under-hood or industrial outdoor applications without active thermal management.","metaTitle":"CY7C131-15JXC SRAM, 8Kbit Dual-Port Async, 15 ns, 52-PLCC","metaDescription":"Cypress CY7C131-15JXC 8Kbit dual-port asynchronous SRAM, 15 ns access time, 4.5V-5.5V, 52-PLCC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tube","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"15 ns","Memory Size":"8Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"52-LCC (J-Lead)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C131","Memory Organization":"1K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"52-PLCC (19.13x19.13)","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/04f9ce00d009b85ebfbbc776e498624c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C131-15JXC obsolete?","answer":"Yes, the CY7C131-15JXC is listed as Obsolete by the manufacturer. Cypress no longer produces this part, and no last-time-buy window is open."},{"question":"What is the replacement for CY7C131-15JXC?","answer":"No official replacement part number is listed in the manufacturer's lifecycle records. For a form-fit-function substitute, evaluate other 8Kbit dual-port asynchronous SRAMs in a 52-PLCC package with 15 ns access time and 5 V supply — but verify pin compatibility and timing against your specific design."},{"question":"What is the memory size of CY7C131-15JXC?","answer":"The memory size is 8Kbit, organized as 1K words by 8 bits (1K x 8)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C131-15JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C131-15JXC 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}}