{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399B-12VXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399B-12VXC","canonicalUrl":"https://icboms.com/infineon/CY7C1399B-12VXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399B-12VXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1399B-12VXC, 256Kbit asynchronous SRAM, 32K x 8, 12 ns access time, 3V–3.6V supply, 28-BSOJ (7.62 mm) surface-mount package, 0°C–70°C commercial temperature, tube.","salesMarkdown":"## 256Kbit density — BOM fit for buffer and cache 256Kbit organized as 32K x 8 is a common depth for small packet buffers, micro-controller scratchpad, or FPGA configuration storage. The parallel interface is straightforward — address, data, chip enable, output enable, write enable — no clock, no refresh. Commercial temperature grade (0°C to 70°C) suits office equipment, telecom indoor racks, and test gear; not for an unheated enclosure or engine bay.","metaTitle":"Cypress CY7C1399B-12VXC 256Kbit Async SRAM, 12 ns","metaDescription":"Cypress CY7C1399B-12VXC 256Kbit asynchronous SRAM, 32Kx8, 12 ns access time, 3V–3.6V supply, 28-SOJ, commercial temp. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C1399B-12VXC","Package":"Tube","Technology":"SRAM - Asynchronous","Access Time":"12 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":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ece7e68f50620eb89e0b3d7eb36684f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399B-12VXC/alternatives.json"},"ai":{"faq":[{"question":"What is the access time of CY7C1399B-12VXC?","answer":"The access time is 12 ns, with a matching 12 ns write cycle time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399B-12VXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399B-12VXC 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}}