{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199C-15VXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199C-15VXCT","canonicalUrl":"https://icboms.com/infineon/CY7C199C-15VXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C199C-15VXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C199C-15VXCT asynchronous SRAM, 256Kbit (32K x 8), 15 ns access time, parallel interface, 4.5V-5.5V supply, 0°C to 70°C, 28-SOJ package, Tape & Reel.","salesMarkdown":"## 256Kbit asynchronous SRAM, 15 ns — the bus timing constraint The CY7C199C-15VXCT is a 256Kbit asynchronous SRAM organized as 32K x 8 bits with a parallel interface. The 15 ns access time sets the window for the memory controller to latch data after address assertion — a 66 MHz bus with a 15 ns cycle budget has zero margin for additional propagation delay through buffers or level shifters. For an industrial enclosure that sees 85°C ambient, the junction temperature exceeds the rated limit — the part is not specified for that environment. ## 28-SOJ package — footprint and assembly The 28-SOJ (300 mil body width, J-bend leads) is a legacy surface-mount package. The 1.27 mm lead pitch and J-bend profile match the standard SOJ footprint — no fine-pitch alignment issues. The J-bend gives a smaller footprint than an equivalent SOIC but the solder joint is less inspectable under the body. Supplied in Tape & Reel (TR) — compatible with automated pick-and-place. No moisture sensitivity level is listed; given the package age, assume MSL 3 or higher and bake before reflow if the seal is broken. For a BOM that requires this exact order code, the only path is the open market.","metaTitle":"CY7C199C-15VXCT 256Kbit Asynchronous SRAM, 15 ns, 28-SOJ","metaDescription":"Infineon CY7C199C-15VXCT 256Kbit (32K x 8) asynchronous SRAM, 15 ns access, 4.5V-5.5V, 28-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":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-BSOJ (0.300\\\", 7.62mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C199","Memory Organization":"32K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-SOJ","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b500fa0ee687a89ce00255378ab4eee0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY7C199C-15VXCT?","answer":"The 28-SOJ footprint is standard for 256Kbit asynchronous SRAMs from multiple vendors, but each must be verified for timing and supply voltage compatibility against the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199C-15VXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199C-15VXCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:15:23.638Z","lastPublished":"2026-07-21T02:15:23.638Z","indexable":true}}