{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BNL-15VXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BNL-15VXC","canonicalUrl":"https://icboms.com/infineon/CY7C1399BNL-15VXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-15VXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1399BNL-15VXC, 256Kbit asynchronous SRAM, 15 ns access time, 3V–3.6V supply, 32K x 8 parallel organization, 28-BSOJ (0.300\", 7.62mm) surface-mount package, 0°C–70°C operating temperature, Tube.","salesMarkdown":"## 32K x 8 — byte-wide bus fit The CY7C1399BNL-15VXC: The 32K x 8 organization maps directly onto an 8-bit data bus without external byte-lane muxing. Cypress has officially marked the CY7C1399BNL-15VXC as Obsolete. Sourcing is limited to independent distribution and surplus inventory channels. ## 28-SOJ footprint — legacy PCB retrofit If your board has a 28-pin SOJ socket or footprint for a 32K x 8 SRAM, this part is a mechanical drop-in. Verify the pin 1 orientation against your existing layout — SOJ packages are not symmetric.","metaTitle":"Cypress CY7C1399BNL-15VXC 256Kbit Async SRAM, 15 ns","metaDescription":"Cypress CY7C1399BNL-15VXC 256Kbit asynchronous SRAM, 15 ns access time, 32K x 8, 3V-3.6V, 28-SOJ. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C1399BNL-15VXC","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)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"CY7C1399","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":"$1.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/69ff54d69906280bfa12bf5ffcc96488.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-15VXC/alternatives.json"},"ai":{"faq":[{"question":"Is the CY7C1399BNL-15VXC obsolete?","answer":"Yes — the lifecycle stage is end-of-life hot under. Standard distribution is no longer active; sourcing is allocation recovery or broker channel only."},{"question":"Does the 3 V–3.6 V supply handle brownout to 2.9 V?","answer":"No. The operating minimum is 3 V — a 2.9 V brownout during a motor-stall event falls outside the rated window and risks data corruption. The design needs a hold-up circuit or supply supervision if that event is a real-world case."},{"question":"Is 15 ns access time compatible with a 50 MHz FPGA interface?","answer":"Yes. 50 MHz gives a 20 ns cycle; 15 ns access is well within that window. Write cycle time is also 15 ns symmetric, so a single firmware timing budget covers both read and write operations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BNL-15VXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BNL-15VXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:00:21.799Z","lastPublished":"2026-07-16T10:00:21.799Z","indexable":true}}