{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430FR5731IDAR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430FR5731IDAR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430FR5731IDAR","factsUrl":"https://icboms.com/api/mcp/products/MSP430FR5731IDAR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430 FRAM series, MSP430FR5731IDAR, 16-bit MSP430 CPUXV2 MCU at 24MHz, 4KB FRAM, 1K x 8 RAM, 30 I/O, 14x10b ADC, I²C/SPI/UART/LIN, 2V–3.6V supply, -40°C to 85°C, 38-TSSOP.","salesMarkdown":"## FRAM memory — what it changes for the firmware strategy The FRAM array serves both program storage and data logging without a separate EEPROM. Writes are at bus-cycle speed and low-energy, allowing logging on every power cycle without wear. ## Peripherals and I/O — what is on the pins Thirty I/O lines are available in the 38-TSSOP package. On-chip peripherals include a brown-out reset, power-on reset, PWM timer, and watchdog timer — enough for a standalone controller without external supervisor ICs. The 14-channel 10-bit ADC samples at rates suitable for slow analog signals (temperature, pressure, battery voltage). Serial connectivity covers I²C, SPI, UART, LIN, and IrDA, so the part can bridge to a Modbus RTU transceiver, an LCD driver, or a wireless module.","metaTitle":"TI MSP430FR5731IDAR 16-bit MCU, 24MHz, 4KB FRAM, 38-TSSOP","metaDescription":"Texas Instruments MSP430FR5731IDAR 16-bit MCU with 24MHz CPUXV2 core, 4KB FRAM, 1K x 8 RAM, 30 I/O, 14x10b ADC, industrial temp -40°C to 85°C. Obsolete — sourced to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"24MHz","Series":"MSP430™ FRAM","Package":"Tape & Reel (TR)","RAM Size":"1K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SCI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"30","Core Processor":"MSP430 CPUXV2","Package / Case":"38-TSSOP (0.240\\\", 6.10mm Width)","Product Status":"Obsolete","Data Converters":"A/D 14x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430FR5731","Program Memory Size":"4KB (4K x 8)","Program Memory Type":"FRAM","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"38-TSSOP","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6770dc50cedf51bebb10ebb3e633c37e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430FR5731IDAR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MSP430FR5731IDAR?","answer":"A higher-density MSP430FR57xx device in the same 38-TSSOP package (e.g., 8 KB or 16 KB FRAM variants) is the practical pin-compatible drop-in. No official TI successor code is published for this exact MPN, so firmware migration for the larger memory map is required."},{"question":"What is MSP430FR5731IDAR's listed speed?","answer":"The CPUXV2 core runs at 24 MHz, which sets the timing budget for sensor polling loops and control-law execution."},{"question":"What series is MSP430FR5731IDAR from?","answer":"It is part of the MSP430 FRAM series, which uses ferroelectric RAM for program and data storage instead of conventional Flash or EEPROM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430FR5731IDAR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430FR5731IDAR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}