{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C144-55JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C144-55JXC","canonicalUrl":"https://icboms.com/infineon/CY7C144-55JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C144-55JXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C144-55JXC, SRAM - Dual Port, Asynchronous, 64Kbit (8K x 8), 55 ns access time, 4.5V~5.5V, 0°C~70°C, 68-LCC (J-Lead), Tray.","salesMarkdown":"## 64Kbit dual-port SRAM — 55 ns asynchronous arbitration The CY7C144-55JXC: It allows two independent processors or controllers to read/write the same memory array without clock coordination — each port has its own address, data, and control lines. No official successor or pin-compatible replacement is recorded from the original manufacturer. Availability is lot-specific and confirmed at RFQ — no stock-holding claim is made. Buyers should qualify an alternate dual-port SRAM in the same 68-PLCC footprint if a long-term supply is required. ## 55 ns access time — what it means for bus timing The 55 ns access time sets the minimum read/write cycle window. In a dual-port arbitration scenario, each port's address setup-to-data-valid delay is 55 ns max — this governs the bus speed ceiling. A 20 MHz bus with a 50 ns cycle leaves only 5 ns margin; consider a faster part (e.g., 25 ns or 15 ns) if the system clock exceeds 18 MHz.","metaTitle":"CY7C144-55JXC Infineon 64Kbit Dual-Port SRAM, 55 ns, 68-PLCC","metaDescription":"CY7C144-55JXC 64Kbit (8K x 8) dual-port asynchronous SRAM from Infineon. 55 ns access time, 5V supply, 68-PLCC. Obsolete — sourced to order against RFQ.","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":"55 ns","Memory Size":"64Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"68-LCC (J-Lead)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C144","Memory Organization":"8K x 8","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"68-PLCC (24.23x24.23)","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11a5283ca7dd283f841c3b9dcc5b7753.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY7C144-55JXC?","answer":"For a drop-in replacement, evaluate other 64Kbit dual-port SRAMs in 68-PLCC from vendors such as Renesas (IDT) or Cypress (now Infineon) — verify the pinout and timing against the original datasheet before specifying."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C144-55JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C144-55JXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:09:45.115Z","lastPublished":"2026-07-21T02:09:45.115Z","indexable":true}}