{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ICE40LP8K-CM121","brand":"Lattice Semiconductor Corporation","brandSlug":"lattice-semiconductor-corporation","productSlug":"ICE40LP8K-CM121","canonicalUrl":"https://icboms.com/lattice-semiconductor-corporation/ICE40LP8K-CM121","factsUrl":"https://icboms.com/api/mcp/products/ICE40LP8K-CM121","rawCanonicalId":null},"summary":{"shortDescription":"Lattice Semiconductor iCE40™ LP FPGA, 7680 logic cells, 93 I/O, 128 Kbit RAM, 121-UCBGA (5x5), 1.14-1.26 V, -40 to 100 °C, Tray.","salesMarkdown":"## 7680 logic cells in a 5x5 mm footprint The ICE40LP8K-CM121 packs 7680 logic cells and 93 I/O into a 121-ball UCBGA that measures 5x5 mm — the tightest density-to-footprint ratio in the iCE40 LP family. For a portable sensor bridge or a display controller that needs to fit behind a 10 mm board edge, this package saves real estate without sacrificing the logic budget. 93 I/O on a 121-ball array means the outer two rings carry signals while the core balls are mostly VCC and GND. The 0.5 mm pitch demands a 4-layer PCB for reliable fan-out — two-layer boards will struggle to escape the inner rows without via-in-pad. Plan the decoupling caps within 2 mm of the package edge to keep the 1.14-1.26 V core rail clean. The 128 Kbit block RAM (131072 bits total) is organized as 8 Kbit blocks — enough for a 1024x8 FIFO or a line buffer for a 320x240 display. For larger frame buffers, you will need external SRAM or PSRAM on the GPIO. ## Industrial temp grade and active lifecycle Rated -40 to 100 °C junction temperature, this FPGA handles outdoor base stations, engine-bay data loggers, and factory-floor sensor hubs without a heatsink. The 1.14-1.26 V supply is tight — a 1.2 V rail with ±3% regulation keeps the core within spec across the full temp swing. ## Where the I/O count lands against siblings The ICE40LP8K-CM121 (93 I/O) sits between the CM81 (63 I/O) and the CM225 (178 I/O) on the same LP8K die — all three share 7680 logic cells, 128 Kbit RAM, and 960 LABs. The CM121 is the middle option: enough I/O for a parallel LCD interface or a 16-bit data bus plus control signals, without the larger 225-ball package that drives up PCB cost. The HX8K variant (ICE40HX8K-BG121) matches the 93 I/O and 7680 logic cells but runs on a different power profile — the HX series targets higher performance at the cost of higher static power. For battery-operated designs, the LP series remains the lower-power choice.","metaTitle":"Lattice ICE40LP8K-CM121 FPGA, 7680 LEs, 93 I/O, 121-UCBGA","metaDescription":"Lattice iCE40 LP FPGA with 7680 logic cells, 93 I/O, 128 Kbit RAM in 5x5 mm 121-UCBGA. Active production, industrial temp. 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":"93","Package / Case":"121-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":"121-UCBGA (5x5)","Number of Logic Elements/Cells":"7680"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.2000","priceTiers":[{"qty":1,"price":"$13.20000","currency":"USD"},{"qty":25,"price":"$11.50000","currency":"USD"},{"qty":100,"price":"$11.11500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d18c7edb8fd28a80a280c2cb87a0725a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ICE40LP8K-CM121/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/lattice-semiconductor-corporation/ICE40LP8K-CM121","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-CM121 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}}