{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ICE40LP8K-CM81","brand":"Lattice Semiconductor Corporation","brandSlug":"lattice-semiconductor-corporation","productSlug":"ICE40LP8K-CM81","canonicalUrl":"https://icboms.com/lattice-semiconductor-corporation/ICE40LP8K-CM81","factsUrl":"https://icboms.com/api/mcp/products/ICE40LP8K-CM81","rawCanonicalId":null},"summary":{"shortDescription":"Lattice Semiconductor Corporation iCE40™ LP FPGA, ICE40LP8K-CM81, 7680 logic cells, 63 I/O, 128 Kbit RAM, 81-VFBGA package, Tray.","salesMarkdown":"## Logic capacity and I/O count for BOM-fit decisions The ICE40LP8K-CM81 integrates 7680 logic cells (960 LABs/CLBs) and 128 Kbit of block RAM, placing it in the mid-density tier of the iCE40 LP family. For a design that needs a few hundred LUTs for glue logic plus a small FIFO or register file, this device leaves headroom without overspending on a larger FPGA. 63 user I/O are brought out to the 81-ball BGA. The 4x4 mm 81-UCBGA footprint (0.5 mm pitch typical for this class) demands careful fan-out on a multi-layer board; the 63 I/O count is the practical limit for the package, not the core logic. Core supply is 1.14 V to 1.26 V — a single 1.2 V rail suffices, simplifying the power tree. Supplied in Tray packaging, the 81-VFBGA (81-UCBGA 4x4 mm) is a fine-pitch BGA. The 0.5 mm ball pitch requires a solder paste stencil with aperture ratios matched to the pad diameter; a standard reflow profile for lead-free SAC305 alloy is appropriate.","metaTitle":"Lattice ICE40LP8K-CM81 FPGA, 7680 LEs, 63 I/O, 81-UCBGA","metaDescription":"Lattice iCE40 LP FPGA, 7680 logic cells, 63 I/O, 128 Kbit RAM, 1.14-1.26 V core, -40 to 100°C. Active production, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"iCE40™ LP","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["FPGA / CPLD & Programmable Logic"],"specifications":{"Mfr":"Lattice Semiconductor Corporation","Series":"iCE40™ LP","Package":"Tray","Mounting Type":"Surface Mount","Number of I/O":"63","Package / Case":"81-VFBGA","Product Status":"Active","Total RAM Bits":"131072","lifecycle_stage":"unknown","Voltage - Supply":"1.14V ~ 1.26V","Base Product Number":"ICE40","Number of LABs/CLBs":"960","Operating Temperature":"-40°C ~ 100°C (TJ)","Supplier Device Package":"81-UCBGA (4x4)","Number of Logic Elements/Cells":"7680"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.5500","priceTiers":[{"qty":1,"price":"$11.55000","currency":"USD"},{"qty":25,"price":"$10.05000","currency":"USD"},{"qty":100,"price":"$9.68500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d18c7edb8fd28a80a280c2cb87a0725a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ICE40LP8K-CM81/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the ICE40LP8K-CM81 and the ICE40LP8K-CM121?","answer":"Both devices share the same logic density (7680 cells, 128 Kbit RAM) and supply voltage range. The CM121 variant offers 93 I/O in a 121-ball BGA, compared to 63 I/O in the 81-ball CM81. The package footprint is larger on the CM121, so a board designed for the CM81 cannot accept the CM121 without a layout change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/lattice-semiconductor-corporation/ICE40LP8K-CM81","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/lattice-semiconductor-corporation/ICE40LP8K-CM81 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}