{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C12681KV18-400BZXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C12681KV18-400BZXC","canonicalUrl":"https://icboms.com/infineon/CY7C12681KV18-400BZXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C12681KV18-400BZXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C12681KV18-400BZXC, SRAM - Synchronous DDR II+, 36Mbit (2M x 18), 400 MHz, Parallel, 1.7V-1.9V, 0°C to 70°C, 165-FBGA (13x15 mm), Tray.","salesMarkdown":"## 36 Mbit DDR II+ SRAM at 400 MHz — what this part was built for It clocks at 400 MHz, which means back-to-back read-write cycles with no dead cycles — exactly what a high-throughput packet buffer or network line card needs. The 1.7 V to 1.9 V core supply keeps I/O power low, but the commercial temperature range (0°C to 70°C) limits it to indoor, temperature-controlled gear like telecom central-office switches or enterprise router line cards. ## Obsolete — sourcing the CY7C12681KV18-400BZXC today The DDR II+ interface transfers data on both clock edges at 400 MHz. For a 2M x 18 configuration, this provides high bandwidth.","metaTitle":"Cypress CY7C12681KV18-400BZXC 36Mbit SRAM, 400 MHz, DDR II+, Obsolete","metaDescription":"Cypress CY7C12681KV18-400BZXC is a 36Mbit synchronous SRAM with DDR II+ interface, 400 MHz clock, 2M x 18 organization, 165-FBGA. 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":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","Technology":"SRAM - Synchronous, DDR II+","Memory Size":"36Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"165-LBGA","Product Status":"Obsolete","Clock Frequency":"400 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Base Product Number":"CY7C12681","Memory Organization":"2M x 18","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"165-FBGA (13x15)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$57.7800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4f9d13a8728fc9e48897bef202ca9c62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C12681KV18-400BZXC/alternatives.json"},"ai":{"faq":[{"question":"What is the direct replacement for CY7C12681KV18-400BZXC?","answer":"No official direct replacement is listed by the manufacturer. A pin-compatible alternative would need to be verified against the 165-FBGA footprint and DDR II+ interface — contact us with your BOM for cross-reference support."},{"question":"What is the maximum clock frequency of CY7C12681KV18-400BZXC?","answer":"The maximum clock frequency is 400 MHz, with a DDR II+ interface that transfers data on both clock edges."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C12681KV18-400BZXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C12681KV18-400BZXC 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}}