{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1049BNL-17VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1049BNL-17VC","canonicalUrl":"https://icboms.com/infineon/CY7C1049BNL-17VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1049BNL-17VC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1049BNL-17VC, 4Mbit (512K x 8) asynchronous SRAM, 17 ns access time, parallel interface, 4.5V-5.5V supply, 0°C-70°C, 36-SOJ package.","salesMarkdown":"## 5 V asynchronous SRAM in a 36-SOJ footprint The device is housed in a 36-SOJ (BSOJ) surface-mount package, a footprint common in late-1990s to mid-2000s embedded systems, telecom line cards, and test equipment that required fast, byte-wide scratchpad memory on a 5 V rail. Buyers should verify date code freshness and inspect for moisture sensitivity (MSL) before reflow, as inventory may carry extended shelf age. ## 17 ns access time — timing budget for legacy buses The 17 ns access time defines the window from address assertion to valid data on the outputs. For a 5 V system running a 33 MHz to 50 MHz bus, this rating provides roughly one to two clock cycles of margin, depending on the memory controller's setup/hold requirements. If your design originally used a slower SRAM (e.g., 25 ns or 20 ns), this part will meet timing; if you are migrating to a faster controller, verify that the 17 ns window does not violate the minimum address-hold time. ## Package and supply rail considerations The 36-SOJ package (body width 10.16 mm, 0.400 inch) is a JEDEC-standard SOJ footprint. It is surface-mount but not a fine-pitch BGA, so rework with a hot-air station is feasible.","metaTitle":"CY7C1049BNL-17VC Infineon SRAM, 4Mbit 512Kx8 17ns 36-SOJ","metaDescription":"CY7C1049BNL-17VC Infineon asynchronous SRAM, 4Mbit (512K x 8), 17 ns access time, 4.5V-5.5V, 0°C-70°C, 36-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":"Bag","Technology":"SRAM - Asynchronous","Access Time":"17 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":"17ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/96fc6d4186b9f8581263a981f829fc54.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C1049BNL-17VC?","answer":"Infineon has not published an official successor for the CY7C1049BNL-17VC. For a pin-compatible alternative, look for other 4 Mbit asynchronous SRAMs in a 36-SOJ package with a 5 V supply and 17 ns or faster access time, such as the CY7C1049B series variants (e.g., CY7C1049BNL-15VC, 15 ns). Verify the exact footprint and timing before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1049BNL-17VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1049BNL-17VC 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}}