{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LFE5UM-45F-8BG381C","brand":"Lattice Semiconductor Corporation","brandSlug":"lattice-semiconductor-corporation","productSlug":"LFE5UM-45F-8BG381C","canonicalUrl":"https://icboms.com/lattice-semiconductor-corporation/LFE5UM-45F-8BG381C","factsUrl":"https://icboms.com/api/mcp/products/LFE5UM-45F-8BG381C","rawCanonicalId":null},"summary":{"shortDescription":"Lattice Semiconductor ECP5 FPGA, LFE5UM-45F-8BG381C, 44000 logic elements, 203 I/O, 1.9 Mb RAM, 381-CABGA (17x17 mm), 0°C to 85°C, Tray.","salesMarkdown":"## 44 000 logic elements — what that means for your design The LFE5UM-45F-8BG381C packs 44 000 logic elements in 11 000 LABs/CLBs, giving you the fabric to implement a modest soft-core processor plus peripheral logic without resorting to an external CPLD. The 203 user I/O routes to the 381-ball CABGA (17x17 mm) — enough pins to connect a parallel LCD, a 16-bit data bus, and a handful of sensors without multiplexing. ## On-chip memory and supply rails Total RAM bits come to 1 990 656 — roughly 1.9 Mb — enough for a 1024x768 frame buffer at 16-bit colour or a moderate FIFO for streaming data. The core supply is tight: 1.045 V to 1.155 V, so the board's voltage regulator must hold regulation within 110 mV across load steps. The commercial temperature grade (0°C to 85°C) suits indoor equipment, telecom racks, and benchtop instrumentation. The 381-CABGA (17x17 mm) footprint is shared with the industrial-temperature sibling LFE5UM-45F-7BG381I — the same logic density and pinout, just a wider temperature range. If your design eventually needs -40°C operation, the pin-compatible swap is straightforward.","metaTitle":"Lattice LFE5UM-45F-8BG381C ECP5 FPGA, 44000 LEs, 203 I/O","metaDescription":"Lattice Semiconductor LFE5UM-45F-8BG381C ECP5 FPGA, 44000 logic elements, 203 I/O, 1.9 Mb RAM, 381-CABGA. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"ECP5","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["FPGA / CPLD & Programmable Logic"],"specifications":{"Mfr":"Lattice Semiconductor Corporation","Series":"ECP5","Package":"Tray","Mounting Type":"Surface Mount","Number of I/O":"203","Package / Case":"381-FBGA","Product Status":"Active","Total RAM Bits":"1990656","lifecycle_stage":"unknown","Voltage - Supply":"1.045V ~ 1.155V","Base Product Number":"LFE5UM-45","Number of LABs/CLBs":"11000","Operating Temperature":"0°C ~ 85°C (TJ)","Supplier Device Package":"381-CABGA (17x17)","Number of Logic Elements/Cells":"44000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$59.3000","priceTiers":[{"qty":1,"price":"$59.30000","currency":"USD"},{"qty":25,"price":"$51.65000","currency":"USD"},{"qty":100,"price":"$49.72500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/496575ee6a44fd98e19810ac630165b2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LFE5UM-45F-8BG381C/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for LFE5UM-45F-8BG381C?","answer":"The LFE5UM-45F-7BG381I is the industrial-temperature variant of the same die — same 44 000 logic elements, same 203 I/O, same 381-CABGA package. The '8' speed grade on the commercial part is one bin faster than the '7' on the industrial part, but the pinout and logic density are identical, so it drops into the same board without layout changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/lattice-semiconductor-corporation/LFE5UM-45F-8BG381C","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/LFE5UM-45F-8BG381C 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}}