{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F67481IPEUR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F67481IPEUR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F67481IPEUR","factsUrl":"https://icboms.com/api/mcp/products/MSP430F67481IPEUR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series 16-Bit MCU, MSP430F67481IPEUR, 25MHz core, 256KB Flash, 32K x 8 RAM, 4x24b Sigma-Delta ADC, LCD, 90 I/O, 1.8V–3.6V, -40°C~85°C, 128-LQFP.","salesMarkdown":"The MSP430F67481IPEUR carries an Obsolete product status. Because no pin-compatible direct replacement has been published by TI, a design migration to a current MSP430F6xx variant (such as the MSP430F67491 or MSP430F6779) may require firmware porting and PCB layout review — particularly around the 4x24b sigma-delta converter and LCD segment mapping. Dual-sourcing the obsolete part from spot inventory is the faster path for existing BOMs. ## Peripheral set and application fit The headline feature is the 4x24-bit Sigma-Delta converter array — four simultaneous high-resolution channels that directly digitise current and voltage transformer outputs in polyphase energy meters. The integrated LCD driver supports up to 160 segments, enough for a multi-line display showing kWh, V, A, and PF. The 25 MHz CPUXV2 core delivers 16-bit RISC throughput with a hardware multiplier for DSP-style accumulate operations common in metrology algorithms. 256 KB Flash and 32K x 8 RAM accommodate a full metering stack plus communication protocol handling (DLMS/COSEM, Modbus over UART, or simple I²C/SPI sensor polling). ## Package and layout considerations Housed in a 128-LQFP package with a 20x14 mm body (EIAJ LQFP-128), this is a surface-mount device. The exposed pad (if present on the die-attach flag) should be stitched to a ground plane via a thermal via array for junction temperature management, especially when the 4x sigma-delta ADCs and LCD driver are active simultaneously. Supply decoupling: one 100 nF ceramic per Vcc/Vdd pair, plus a 10 µF bulk cap near the main supply entry.","metaTitle":"MSP430F67481IPEUR 16-Bit MCU, 25MHz, 256KB Flash, 32Kx8 RAM","metaDescription":"Texas Instruments MSP430F67481IPEUR 16-bit MCU with MSP430 CPUXV2 core, 25MHz speed, 256KB Flash, 32Kx8 RAM, 4x24b Sigma-Delta ADC, LCD driver.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"25MHz","Series":"MSP430F6xx","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 4x24b Sigma Delta Converter","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"90","Core Processor":"MSP430 CPUXV2","Package / Case":"128-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F67481","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"128-LQFP (20x14)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.5957","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9e5a6f46316bab53467cc83d35695a88.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for MSP430F67481IPEUR?","answer":"No official pin-compatible replacement has been published by TI. For existing BOMs, sourcing the original part from surplus inventory is the fastest path. A design migration to a current MSP430F6xx variant (e.g., MSP430F67491) would require firmware and PCB layout changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F67481IPEUR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F67481IPEUR 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}}