{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199C-15VI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199C-15VI","canonicalUrl":"https://icboms.com/infineon/CY7C199C-15VI","factsUrl":"https://icboms.com/api/mcp/products/CY7C199C-15VI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C199C-15VI, 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 4.5V–5.5V supply, parallel interface, -40°C to 85°C, 28-SOJ package, Tube.","salesMarkdown":"## 256Kbit asynchronous SRAM in a 28-SOJ – what you need to know It uses a parallel interface and comes in a 28-SOJ surface-mount package. This part is typically used as a fast scratchpad, cache buffer, or working memory in embedded systems, telecom equipment, and industrial controllers where deterministic read/write timing matters. ## 15 ns access time – timing closure for the bus For a processor running at 33 MHz or slower, this gives comfortable margin on a standard asynchronous memory bus. If your system clock is faster, you will need a synchronous SRAM or a faster asynchronous part with a 10 ns or 8 ns rating. ## Industrial temperature range – where it fits If your design runs at 3.3V, look for a 3.3V-rated variant in the CY7C199 family. ## Obsolete – sourcing reality Infineon lists the CY7C199C-15VI as obsolete. New production is not available from the factory. For a new design, consider a current-production 32K x 8 asynchronous SRAM in the same 28-SOJ footprint from Infineon or a second-source vendor such as ISSI or Alliance Memory. ## 28-SOJ package – footprint and compatibility The 28-SOJ (Small Outline J-lead) body measures 7.62 mm wide, a common footprint for 32K x 8 SRAMs. Many 28-pin SOJ parts from different manufacturers share the same pinout, which simplifies cross-sourcing. The tube shipment is typical for prototype and low-volume builds; reel quantities may be available through surplus channels.","metaTitle":"CY7C199C-15VI Infineon SRAM, 256Kbit 15 ns 28-SOJ","metaDescription":"Infineon CY7C199C-15VI 256Kbit (32K x 8) asynchronous SRAM with 15 ns access time, -40°C to 85°C, 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":"Tube","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":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-SOJ","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b500fa0ee687a89ce00255378ab4eee0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C199C-15VI obsolete?","answer":"Yes, Infineon lists the CY7C199C-15VI as obsolete. No factory production is available."},{"question":"What is the best replacement for CY7C199C-15VI?","answer":"Infineon's own CY7C199 family includes active variants; ISSI and Alliance Memory also offer drop-in alternatives. Verify the exact temperature grade and lead-free finish before substituting."},{"question":"Is CY7C199C-15VI pin compatible with other 32Kx8 SRAMs?","answer":"Yes, the 28-SOJ footprint and standard 32K x 8 pinout are common across multiple vendors. Parts from Infineon, ISSI, and Alliance Memory with the same package and organization are generally pin-compatible, but always confirm the pin 1 orientation and any no-connect pins from the respective datasheets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199C-15VI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199C-15VI 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}}