{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199CNL-15VXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199CNL-15VXCT","canonicalUrl":"https://icboms.com/infineon/CY7C199CNL-15VXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C199CNL-15VXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C199CNL-15VXCT, 256Kbit asynchronous SRAM, 32K x 8 organization, 15 ns access time, 4.5V-5.5V supply, parallel interface, 28-SOJ surface-mount package, 0°C to 70°C commercial temperature range.","salesMarkdown":"The Infineon CY7C199CNL-15VXCT is a 256Kbit asynchronous SRAM organized as 32K x 8, with a 15 ns access time that lets it keep pace with legacy 5 V CPLDs, 8-bit microcontrollers, and DSPs running at clock rates up to roughly 33 MHz without inserting wait states. The 15 ns write cycle time matches the read access, so back-to-back byte operations on a shared address/data bus don't need extra dead cycles. This part is a direct drop-in for the original Cypress CY7C199 family, which Infineon now owns. Infineon no longer manufactures the CY7C199CNL-15VXCT in volume; there is no active factory lead time. The only supply channel is independent distribution — surplus inventory, new-old-stock, or broker-sourced material. For a 5 V, 28-SOJ, 15 ns replacement, the buyer will need to qualify a second-source SRAM from a different manufacturer — ISSI, Alliance Memory, or Renesas all make functionally equivalent 32K x 8 asynchronous SRAMs in the same footprint. ## 28-SOJ footprint — board-fit check It is surface-mount only — no through-hole equivalent. The SOJ body is narrower than a 28-pin SOIC, so the footprint is specific: verify the existing PCB land pattern matches the SOJ outline before assuming a drop-in. The Tape & Reel (TR) suffix on this order code means it ships on a 13-inch reel, typically 1000 or 1500 pieces per reel, for automated pick-and-place.","metaTitle":"Infineon CY7C199CNL-15VXCT 256Kbit Async SRAM, 15 ns","metaDescription":"Infineon CY7C199CNL-15VXCT 256Kbit asynchronous SRAM, 32K x 8, 15 ns access time, 4.5V-5.5V, 28-SOJ, 0°C-70°C.","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/002e486065fa853fa472de9cc9c294da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C199CNL-15VXCT?","answer":"The CY7C199CNL-15VXCT is obsolete from the manufacturer, but we source it through independent distribution channels. Submit an RFQ for current availability and pricing — each quote is confirmed at order time against the available surplus inventory."},{"question":"Is CY7C199CNL-15VXCT obsolete?","answer":"Yes, the lifecycle status is Obsolete. Infineon no longer produces this part in volume. It is available only through surplus and broker channels, not from factory stock."},{"question":"What is the replacement for CY7C199CNL-15VXCT?","answer":"No official Infineon successor is listed. For a pin-compatible 5 V, 28-SOJ, 15 ns 32K x 8 SRAM, consider functionally equivalent parts from ISSI (IS61C256AL-15JLI), Alliance Memory (AS6C256B-15JCN), or Renesas (part of the 71V256SA series). Verify the exact timing and supply specs against your design before substituting."},{"question":"What is the access time of CY7C199CNL-15VXCT?","answer":"The access time is 15 ns, with a matching 15 ns write cycle time (word, page). This supports zero-wait-state operation with bus masters running up to roughly 33 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199CNL-15VXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199CNL-15VXCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}