{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1049D-10VXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1049D-10VXI","canonicalUrl":"https://icboms.com/infineon/CY7C1049D-10VXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C1049D-10VXI","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1049D-10VXI, a 4Mbit asynchronous SRAM organized 512K×8, 10 ns access and write-cycle time, 4.5V–5.5V supply, 36-pin SOJ surface-mount package, industrial temperature range -40°C to 85°C.","salesMarkdown":"Cypress officially lists the CY7C1049D-10VXI as Obsolete. No last-time-buy window remains open from the manufacturer. Sourcing now runs through independent distribution where date-code and quality provenance must be verified against the PCN closure date. ## 10 ns access time — timing budget fit The 10 ns access time and 10 ns write-cycle time suit zero-wait-state interfaces on legacy DSPs or CPLD-based memory controllers. ## 5V supply — not 3.3V compatible The part does not support a 3.3 V rail. A true 3.3 V asynchronous SRAM in the same density and speed class would be a different Cypress family (e.g., CY7C1041). ## Industrial temperature grade The 36-pin SOJ package (10.16 mm wide) is a JEDEC-standard footprint; verify the land pattern against your existing layout. ## Surface-mount SOJ-36 — rework and handling The package is surface-mount with J-bend leads.","metaTitle":"CY7C1049D-10VXI Cypress 4Mbit Async SRAM, 10 ns, 5V, SOJ-36","metaDescription":"CY7C1049D-10VXI Cypress 4Mbit asynchronous SRAM, 512K×8, 10 ns access time, 4.5V–5.5V supply, -40°C to 85°C, 36-pin SOJ.","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":"10 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":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-SOJ","Write Cycle Time - Word, Page":"10ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3998","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ef26bb8332a8b72e0c9d44a0b0f27a70.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1049D-10VXI/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C1049D-10VXI?","answer":"Cypress does not publish a direct pin-compatible successor for the CY7C1049D-10VXI. For a 5V, 4Mbit, 10 ns asynchronous SRAM in a 36-SOJ package, the closest functional match is the CY7C1049D-10VXI itself through surplus channels. If the board can tolerate a different footprint, consider the CY7C1041 series in a 44-pin TSOP-II, but that requires a layout change."},{"question":"Does CY7C1049D-10VXI support 3.3V?","answer":"No. Operating at 3.3 V is outside the rated limits and the memory will not function correctly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1049D-10VXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1049D-10VXI 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}}