{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1049B-20VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1049B-20VC","canonicalUrl":"https://icboms.com/infineon/CY7C1049B-20VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1049B-20VC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1049B-20VC, 4Mbit (512K x 8) Asynchronous SRAM, 20 ns access time, 4.5V–5.5V supply, 0°C–70°C, 36-SOJ package, Tube.","salesMarkdown":"Any stock on the market is surplus, NOS (new old stock), or broker-handled — traceability and date-code consistency matter. The 20 ns access time means this SRAM can complete a read or write cycle in 20 ns, which supports bus speeds up to roughly 50 MHz without wait states in a synchronous system. For async designs, it sets the window for address-to-data valid — critical for timing closure when the memory sits on a shared bus with a CPU or FPGA that expects fast random access. ## 512K x 8 organization and supply range Organized as 512K words of 8 bits each, this part provides a byte-wide data bus — common for 8-bit microcontrollers, boot memory, or FPGA configuration storage. ## Package and footprint: 36-SOJ The 36-SOJ (Small Outline J-lead) package has a body width of 10.16 mm (0.400 inches) and is surface-mount. The J-lead form factor gives a smaller footprint than a DIP but still allows visual inspection of solder joints.","metaTitle":"CY7C1049B-20VC Cypress 4Mbit Async SRAM, 20 ns, 36-SOJ","metaDescription":"Cypress CY7C1049B-20VC 4Mbit (512K x 8) asynchronous SRAM with 20 ns access time, 4.5V-5.5V supply, 0°C-70°C, 36-SOJ package.","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 - Asynchronous","Access Time":"20 ns","Memory Size":"4Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"36-BSOJ (0.400\\\", 10.16mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C1049","Memory Organization":"512K x 8","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"36-SOJ","Write Cycle Time - Word, Page":"20ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/91611bcbc601cc1b2eaba4ec6f4025e6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the access time of CY7C1049B-20VC?","answer":"The access time is 20 ns. Write cycle time (word, page) is also 20 ns."},{"question":"What voltage does CY7C1049B-20VC use?","answer":"The supply voltage range is 4.5V to 5.5V — a 5 V nominal rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1049B-20VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1049B-20VC 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}}