{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C131-15NXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C131-15NXI","canonicalUrl":"https://icboms.com/infineon/CY7C131-15NXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C131-15NXI","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C131-15NXI, 8Kbit (1K x 8) Dual-Port Asynchronous SRAM, 15 ns access time, 4.5V-5.5V supply, -40°C to 85°C, 52-PQFP (10x10), Tray.","salesMarkdown":"## 15 ns dual-port SRAM for shared-memory arbitration The Cypress CY7C131-15NXI is an 8Kbit (organized 1K x 8) dual-port asynchronous SRAM that gives two independent bus masters simultaneous access to a common memory array. The dual-port architecture eliminates the need for external arbitration logic in applications like multiprocessor mailboxes, FIFO buffers, and shared-data stores in industrial controllers or telecom line cards. ## 5V-only supply — not a 3.3V drop-in The supply range is 4.5V to 5.5V, so this part cannot be used in a 3.3V-only system without a level translator on the address, data, and control lines. Cypress (now Infineon) lists the CY7C131-15NXI as obsolete.","metaTitle":"CY7C131-15NXI Cypress 8Kbit Dual-Port SRAM, 15 ns Access","metaDescription":"Cypress CY7C131-15NXI 8Kbit (1K x 8) dual-port asynchronous SRAM, 15 ns access time, 4.5V-5.5V supply, -40°C to 85°C, 52-PQFP.","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":"Tray","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-BQFP","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":"-40°C ~ 85°C (TA)","Supplier Device Package":"52-PQFP (10x10)","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4525bc76605bfaec121d3b7d6a8f362d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C131-15NXI/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C131-15NXI obsolete?","answer":"Yes, Cypress (Infineon) lists the CY7C131-15NXI as obsolete. There is no official replacement order code published for this speed and package variant."},{"question":"What is the access time of CY7C131-15NXI?","answer":"The access time is 15 ns, which matches the write cycle time (word/page) of 15 ns. This allows a single-cycle read or write from a host with a 66 MHz bus clock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C131-15NXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C131-15NXI 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}}