{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430FR2155TRHAR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430FR2155TRHAR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430FR2155TRHAR","factsUrl":"https://icboms.com/api/mcp/products/MSP430FR2155TRHAR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430™ FRAM series, MSP430FR2155TRHAR, 16-Bit MSP430 CPU16, 24MHz, 32KB (32K x 8) FRAM, 4K x 8 RAM, 36 I/O, 1.8V ~ 3.6V, -40°C ~ 105°C, 40-VFQFN Exposed Pad, Surface Mount.","salesMarkdown":"## Active production, no end-of-life worry Texas Instruments lists the MSP430FR2155TRHAR as Active. For a field-service kit or a production run, this is the kind of part you can standardise on. ## FRAM — why it matters for the BOM The 32 KB program memory is FRAM, not Flash. FRAM writes at bus speed without a page-erase cycle, draws less active power per write, and is rated for far more write endurance than Flash. For a design that logs data, stores calibration constants, or does field firmware updates, FRAM eliminates the wear-leveling overhead and the write-time penalty. The 4K x 8 RAM handles the runtime stack and variables. ## 24 MHz core — enough for most sensor and control loops The MSP430 CPU16 runs at 24 MHz. That is not a high-performance DSP number, but it is plenty for a 16-bit MCU handling sensor fusion, UART/I2C/SPI communication, PWM motor control, and the 10-channel 12-bit ADC. The 40-VFQFN package with exposed pad needs a good thermal via stitch under the pad if you push the I/O load; the 6x6 mm footprint is manageable for hand rework with a hot-air station. ## I/O and connectivity for a mixed-signal controller 36 I/O lines are available, along with I2C, SPI, UART/USART, and IrDA. The 10-channel 12-bit ADC covers analog inputs like thermistors, potentiometers, or current-sense resistors without an external converter.","metaTitle":"TI MSP430FR2155TRHAR 16-bit MCU, 24MHz, 32KB FRAM, 4K RAM","metaDescription":"Texas Instruments MSP430FR2155TRHAR 16-bit MCU with 24MHz MSP430 CPU16, 32KB FRAM, 4K x 8 RAM, 36 I/O, -40°C to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"24MHz","Series":"MSP430™ FRAM","RAM Size":"4K x 8","Core Size":"16-Bit","Packaging":"Tape & Reel (TR) Cut Tape (CT)","EEPROM Size":"-","Part Status":"Active","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I2C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"36","Core Processor":"MSP430 CPU16","Package / Case":"40-VFQFN Exposed Pad","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430FR2155","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FRAM","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"40-VQFN (6x6)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/51e464e9a4a69d01f539fb782524a1d1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MSP430FR2155TRHAR?","answer":"Within the MSP430FR2155 family, the base product number MSP430FR2155 shares the same pinout and memory options across the VQFN-40 package. For a larger memory variant, look at the MSP430FR2157 (64 KB FRAM) in the same package — verify the exact order code for your density requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430FR2155TRHAR","citationPolicyUrl":"https://icboms.com/llms.txt","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}