{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1049BL-25VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1049BL-25VC","canonicalUrl":"https://icboms.com/infineon/CY7C1049BL-25VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1049BL-25VC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1049BL-25VC, 4Mbit asynchronous SRAM organized 512K x 8, 25 ns access time, parallel interface, 4.5V-5.5V supply, 0°C to 70°C, 36-SOJ package, Tube.","salesMarkdown":"The CY7C1049BL-25VC is a 4Mbit asynchronous SRAM from Infineon, organized as 512K x 8 bits with a 25 ns access time. This part is a volatile memory — data is retained only while power is applied, so it suits cache, buffer, or scratchpad roles in embedded systems where the bus timing can tolerate a 25 ns window. The 25 ns access time means the memory can complete a read or write cycle in 25 ns minimum, which sets the bus cycle time for the host controller. In practice, this limits the maximum bus frequency to roughly 40 MHz if the controller can meet the setup and hold times. For designs already running at 20-33 MHz, this part fits without timing margin issues. This means the manufacturer no longer produces the part, and no future orders can be placed through the factory. Because the part is obsolete, buyers should verify the date code and condition of any sourced units. The 36-SOJ package is a surface-mount form factor (36-BSOJ, 0.400\" body width), so reflow compatibility and moisture sensitivity level (MSL) should be confirmed with the supplier before committing to a reel or tube quantity. ## Package and temperature grade — design constraints The supplier device package is 36-SOJ (Small Outline J-lead), a surface-mount package with J-bend leads on 1.27 mm pitch. The 0.400-inch (10.16 mm) body width is standard for this density. This simplifies the controller timing design because the same cycle time applies to both read and write operations.","metaTitle":"CY7C1049BL-25VC Infineon 4Mbit Asynchronous SRAM – Obsolete","metaDescription":"Infineon CY7C1049BL-25VC 4Mbit (512K x 8) asynchronous SRAM, 25 ns access time, 36-SOJ package, 4.5V-5.5V supply. Obsolete lifecycle.","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":"25 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":"25ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/05c20756d39318a5cb450a58f26b9eb2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the CY7C1049BL-25VC or check stock?","answer":"Since the CY7C1049BL-25VC is obsolete, we source it through independent distribution channels. Submit an RFQ with your target quantity and target price — we will confirm availability and current pricing at quote time. No stock-holding claim is made; each order is sourced per RFQ against available surplus or new-old-stock inventory."},{"question":"Is the CY7C1049BL-25VC RoHS compliant?","answer":"The evidence does not list RoHS compliance status for this order code. The suffix 'VC' in the part number typically indicates a lead-free finish on Infineon SRAMs, but you should verify the specific date code or request a certificate of compliance from the supplier at quote time."},{"question":"What is the difference between CY7C1049BL-25VC and CY7C1049BL-25VI?","answer":"The suffix 'VC' and 'VI' indicate different package or temperature variants. The 'VC' variant is in a 36-SOJ package with a 0°C to 70°C temperature range. The evidence for this specific MPN does not include the 'VI' variant's full specs, so confirm the exact ratings before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1049BL-25VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1049BL-25VC 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}}