{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C109B-15VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C109B-15VC","canonicalUrl":"https://icboms.com/infineon/CY7C109B-15VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C109B-15VC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C109B-15VC, 1Mbit asynchronous SRAM, 128K x 8 organization, 15 ns access time, 4.5V–5.5V supply, 32-SOJ surface-mount package, tube.","salesMarkdown":"The CY7C109B-15VC is a 1Mbit asynchronous SRAM organized as 128K x 8 bits, with a 15 ns access time and a parallel interface. It operates from a 4.5V to 5.5V supply, placing it in legacy 5V logic systems — not a 3.3V drop-in. The 32-SOJ package (0.400-inch body width) is a surface-mount footprint common in late-1990s through mid-2000s embedded and telecom boards. ## Obsolete — sourcing through distribution Infineon lists the CY7C109B-15VC as Obsolete.","metaTitle":"CY7C109B-15VC SRAM 1Mbit 15ns 32-SOJ Infineon Obsolete","metaDescription":"CY7C109B-15VC Infineon 1Mbit asynchronous SRAM, 128K x 8, 15 ns access, 4.5V–5.5V, 32-SOJ. Obsolete — sourced per RFQ from available inventory.","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":"15 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"32-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":"CY7C109","Memory Organization":"128K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"32-SOJ","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/614cae6aa7d2f85f36b2b9854b99b404.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C109B-15VC/alternatives.json"},"ai":{"faq":[{"question":"How can I order CY7C109B-15VC or check stock?","answer":"The CY7C109B-15VC is obsolete and no longer in production. We source from available inventory and quote to order against your BOM quantity. Submit an RFQ for current availability and pricing — no stock-holding claim on this page."},{"question":"Is there a direct replacement for CY7C109B-15VC?","answer":"No official successor is listed by Infineon. A functionally equivalent 1Mbit asynchronous SRAM in a 32-SOJ package with 15 ns access and 5V supply would need to be verified pin-for-pin and timing-compatible. The 3.3V SRAMs common today are not drop-in replacements due to the supply voltage difference."},{"question":"Can CY7C109B-15VC be replaced by a 3.3V SRAM?","answer":"No — the CY7C109B-15VC requires a 4.5V–5.5V supply. A 3.3V SRAM would need a level translator on the address/data bus and a separate 3.3V rail, which is not a pin-compatible swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C109B-15VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C109B-15VC 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}}