{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199CN-15VXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199CN-15VXC","canonicalUrl":"https://icboms.com/infineon/CY7C199CN-15VXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C199CN-15VXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C199CN-15VXC asynchronous SRAM, 256Kbit (32K x 8), 15 ns access time, parallel interface, 4.5V–5.5V supply, 0°C–70°C, 28-SOJ package, Tube.","salesMarkdown":"## 256Kbit asynchronous SRAM in a 28-SOJ — what this part is The CY7C199CN-15VXC is a 256Kbit asynchronous SRAM from Cypress, organized as 32K words by 8 bits. It is housed in a 28-SOJ (Small Outline J-lead) surface-mount package, a common footprint for late-1990s through 2000s memory designs. ## 15 ns access time — bus timing margin for legacy controllers 15 ns access time per the datasheet. Any stock you find is new-old-stock or surplus from independent distribution. For a production BOM, this is a last-time-buy or broker-sourced line. If you need a drop-in replacement, the search is for a pin-compatible 32K x 8 async SRAM in a 28-SOJ package with 15 ns or faster access time and 5 V supply — several vendors (ISSI, Alliance, Lyontek) offer functionally equivalent parts, but always verify the pinout and timing against your existing layout. Because the CY7C199CN-15VXC is obsolete, it is not stocked by the manufacturer. We source it through our independent distribution network — surplus inventories, overstock, and verified broker channels. Each unit is date-code checked and visually inspected before shipment. If you have a volume requirement or a specific date-code window, include that in your request so we can match the supply to your production schedule.","metaTitle":"CY7C199CN-15VXC Cypress 256Kbit Async SRAM, 15 ns, 28-SOJ","metaDescription":"Cypress CY7C199CN-15VXC 256Kbit asynchronous SRAM, 32K x 8, 15 ns access time, 4.5V–5.5V, 0°C–70°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":"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/be3eb29c05011dcde0f96701ccb420e4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C199CN-15VXC?","answer":"There is no official Cypress successor listed. For a pin-compatible drop-in, look for a 32K x 8 asynchronous SRAM in a 28-SOJ package with 15 ns or faster access time and 4.5V–5.5V supply. Vendors like ISSI, Alliance Memory, and Lyontek offer functionally equivalent parts. Verify the pinout and timing against your existing design before committing."},{"question":"Where to buy CY7C199CN-15VXC?","answer":"We source the CY7C199CN-15VXC through our independent distribution network. Submit an RFQ on this page to confirm current availability and pricing. Each lot is date-code checked and visually inspected before shipment."},{"question":"What is the access time of CY7C199CN-15VXC?","answer":"This is a fast part for a 5 V async SRAM, suitable for 33 MHz and slower buses without wait states."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199CN-15VXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199CN-15VXC 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}}