{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C109B-15VXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C109B-15VXCT","canonicalUrl":"https://icboms.com/infineon/CY7C109B-15VXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C109B-15VXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C109B-15VXCT asynchronous SRAM, 1Mbit (128K x 8), 15 ns access time, parallel interface, 4.5V–5.5V supply, 0°C–70°C, 32-SOJ package, Tape & Reel.","salesMarkdown":"The CY7C109B-15VXCT: No stock-holding claim is made here. ## Memory fit for legacy 5V asynchronous sockets Organized as 128K x 8 with a 15 ns access time, this is a standard asynchronous SRAM that drops into any 5V-tolerant parallel bus requiring a 1 Mbit deep, 8-bit wide data path — common in older embedded controllers, telecom line cards, and industrial PLC memory maps. The 4.5V–5.5V supply range confirms it operates on a legacy 5V rail without a level translator, but the 0°C–70°C commercial temperature grade limits it to indoor, climate-controlled environments — not suitable for outdoor or under-hood deployment. A board spin is required to migrate to a different package.","metaTitle":"CY7C109B-15VXCT Infineon 1Mbit SRAM, 15 ns, 32-SOJ","metaDescription":"CY7C109B-15VXCT obsolete Infineon 1Mbit asynchronous SRAM, 128K x 8, 15 ns access time, 4.5V–5.5V, 0°C–70°C, 32-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":"Tape & Reel (TR)","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/9348473d542f5020948178887c70842d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C109B-15VXCT/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C109B-15VXCT?","answer":"Infineon does not list a direct replacement for this part. Any functional replacement would require a different package and pinout — a board redesign is necessary."},{"question":"Can CY7C109B-15VXCT be used in a 5V system?","answer":"Yes, the supply range is 4.5V–5.5V, so it operates directly on a 5V rail without external level translation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C109B-15VXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C109B-15VXCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T01:57:04.670Z","lastPublished":"2026-07-21T01:57:04.670Z","indexable":true}}