{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199CNL-15VXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199CNL-15VXC","canonicalUrl":"https://icboms.com/infineon/CY7C199CNL-15VXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C199CNL-15VXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C199CNL-15VXC, 256Kbit asynchronous SRAM organized 32K x 8, 15 ns access time, 4.5–5.5 V supply, 28-SOJ surface-mount package, 0–70°C commercial temperature range.","salesMarkdown":"## 256Kbit asynchronous SRAM for 5 V legacy buses The CY7C199CNL-15VXC is a 256Kbit asynchronous SRAM from Infineon (formerly Cypress), organized 32K x 8 with a 15 ns access time and a 4.5–5.5 V supply rail. It is housed in a 28-SOJ surface-mount package and rated for 0–70°C commercial operation. The 15 ns access time and 15 ns write cycle time suit it for byte-wide data buses in legacy 5 V microcontroller or DSP systems where bus timing margin is tight. Infineon lists the CY7C199CNL-15VXC as Obsolete. For existing BOM lines, procurement should plan for a last-time buy or identify a pin-compatible replacement. We source this part through our independent distribution network. Submit an RFQ for a firm price and lead time. ## 28-SOJ footprint and supply rail constraints The 28-SOJ package (0.300-inch body width, 7.62 mm) is a JEDEC-standard SOJ footprint. The commercial temperature range (0–70°C) limits use to indoor, controlled environments. Industrial or extended-temperature applications require a different suffix (e.g., CY7C199CNL-15VXI for -40 to 85°C).","metaTitle":"CY7C199CNL-15VXC 256Kbit SRAM 15 ns 5 V Infineon Obsolete","metaDescription":"CY7C199CNL-15VXC is a 256Kbit asynchronous SRAM, 32K x 8, 15 ns access time, 4.5–5.5 V supply, 28-SOJ, 0–70°C. Listed as Obsolete by Infineon. Sourced per RFQ.","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":"Is CY7C199CNL-15VXC obsolete?","answer":"Yes, Infineon lists the CY7C199CNL-15VXC as Obsolete. There is no official replacement from the manufacturer. For production needs, we recommend sourcing through independent distribution or evaluating a pin-compatible 5 V 32K x 8 SRAM in a 28-SOJ package."},{"question":"What is the replacement for CY7C199CNL-15VXC?","answer":"Infineon has not published a direct replacement. A functionally equivalent part would be a 5 V, 32K x 8 asynchronous SRAM with 15 ns or faster access time in a 28-SOJ package. Examples from other vendors include the ISSI IS61C256AH-15JLI or the Alliance Memory AS7C256A-15JCN. Verify pinout and timing compatibility before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199CNL-15VXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199CNL-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}}