{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430FR5731IRHAR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430FR5731IRHAR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430FR5731IRHAR","factsUrl":"https://icboms.com/api/mcp/products/MSP430FR5731IRHAR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430FR5731IRHAR, MSP430™ FRAM series, 16-bit MCU, 24 MHz, 4 KB FRAM, 1K x 8 RAM, 14x10b ADC, I²C/SPI/UART, -40°C to 85°C, 40-VQFN (6x6 mm).","salesMarkdown":"## FRAM-based 16-bit MCU — what the 24 MHz and 4 KB FRAM mean for your BOM FRAM is the key differentiator here: it is non-volatile like Flash but writes at near-SRAM speeds with essentially unlimited endurance — no erase cycles, no write-page buffers. That makes it a strong fit for data-logging, configuration storage, or any application where the MCU writes its own code space frequently, such as over-the-air firmware updates or parameter calibration in industrial sensors. This means TI has ended production; there is no official last-time-buy window open. For existing BOM lines, the independent channel can still fill orders while stock lasts, but expect tightening availability as the installed base consumes the remaining inventory.","metaTitle":"MSP430FR5731IRHAR 16-bit MCU, 24 MHz, 4 KB FRAM, 40-VQFN","metaDescription":"TI MSP430FR5731IRHAR 16-bit MCU with 24 MHz CPU, 4 KB FRAM, 1K x 8 RAM, 14x10b ADC, I²C/SPI/UART, -40°C to 85°C, 40-VQFN.","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":"32","Core Processor":"MSP430 CPUXV2","Package / Case":"40-VFQFN Exposed Pad","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":"40-VQFN (6x6)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6770dc50cedf51bebb10ebb3e633c37e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430FR5731IRHAR/alternatives.json"},"ai":{"faq":[{"question":"Is MSP430FR5731IRHAR obsolete?","answer":"Yes, the MSP430FR5731IRHAR is listed as Obsolete. TI has discontinued production, and no last-time-buy window is active. The part is available through surplus and independent channels while inventory lasts."},{"question":"What is the replacement for MSP430FR5731IRHAR?","answer":"TI has not published a direct pin-compatible replacement for this specific order code. For new designs, consider the current MSP430FR2xxx or MSP430FR5xxx series FRAM MCUs, which offer higher memory densities and updated peripherals while maintaining the FRAM advantage. Check the TI MSP430 FRAM portfolio for a pin-compatible upgrade path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430FR5731IRHAR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430FR5731IRHAR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}