{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F67791IPEU","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F67791IPEU","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F67791IPEU","factsUrl":"https://icboms.com/api/mcp/products/MSP430F67791IPEU","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series 16-bit MCU; 25MHz MSP430 CPUXV2 core; 512KB FLASH, 32KB RAM; 90 I/O; 7×24b sigma-delta converters, LCD, DMA, PWM; I2C/SPI/UART/LINbus/IrDA; 1.8–3.6V; -40°C to 85°C; 128-LQFP in tray.","salesMarkdown":"## MSP430F67791IPEU — 16-bit metering MCU with 7×24b sigma-delta ADC array The distinguishing feature is the integrated 7-channel 24-bit sigma-delta ADC array plus a segment LCD driver — a peripheral set purpose-built for polyphase energy metering, precision instrumentation, and industrial sensor fusion. ## Peripheral set: what the 7×24b sigma-delta converter means for the BOM Seven independent 24-bit sigma-delta ADCs let this single MCU sample multiple voltage and current channels simultaneously — a three-phase energy meter needs at least six channels (three voltages, three currents). The seventh channel can cover neutral current or a reference. That integration eliminates external ADCs and their isolation, pulling the metrology section into one package. The LCD driver handles direct segment drive to a local display, cutting a separate display controller IC. Brown-out detect and POR are on-die, so the reset supervisor is also internal. No AEC-Q grade is listed, so automotive under-hood use isn't the target. ## 128-LQFP package: footprint and routing Housed in a 128-LQFP with a 20 mm × 14 mm body (supplier device package 128-LQFP 20x14). Surface-mount only, tray shipping. The 90 I/O lines on this fine-pitch quad flat pack demand careful fan-out on the PCB — expect at least four signal layers if most I/O are used. ## Connectivity and debug Connectivity covers I2C, SPI, UART/USART, LINbus, and IrDA — enough for sensor buses, serial displays, and industrial fieldbus interfaces. The MSP430 debug interface (Spy-Bi-Wire or JTAG) is standard; no special adapter needed beyond a common MSP430 FET. DMA offloads data movement from the CPU, useful when the sigma-delta converters run continuously. ## Lifecycle and supply posture No official second-source alternate is recorded, so sole-source risk should be assessed for high-volume builds.","metaTitle":"Texas Instruments MSP430F67791IPEU 16-bit MCU, 25 MHz","metaDescription":"MSP430F67791IPEU 16-bit MCU with 25 MHz MSP430 CPUXV2, 512KB Flash, 32KB RAM, 7×24b sigma-delta ADCs, LCD driver, 90 I/O, -40°C to 85°C, 128-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"25MHz","Series":"MSP430F6xx","Package":"Tray","RAM Size":"32K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 7x24b 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":"Active","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F67791","Program Memory Size":"512KB (512K 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":"$16.5800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e856a005fc92d0fb4c865caade2620e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum clock speed of MSP430F67791IPEU?","answer":"The MSP430 CPUXV2 core runs at 25 MHz. That is the rated maximum; the PLL and flash wait states are configured internally to support it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F67791IPEU","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F67791IPEU 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}}