{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F123IRHBT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F123IRHBT","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F123IRHBT","factsUrl":"https://icboms.com/api/mcp/products/MSP430F123IRHBT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430x1xx MSP430F123IRHBT, 16-bit MCU, MSP430 CPU16 core, 8MHz, 8KB Flash, 256 x 8 RAM, SPI, UART/USART, 22 I/O, 1.8V to 3.6V supply, -40°C to 85°C, 32-VQFN (5x5).","salesMarkdown":"## MSP430F123IRHBT — 16-bit ultra-low-power MCU for sensor and control The part integrates SPI and UART/USART serial interfaces, 22 general-purpose I/O lines, a slope A/D converter, plus POR, PWM, and WDT peripherals. ## 8 MHz core — enough throughput for the control loop, not the DSP At 8 MHz the MSP430 CPU16 executes most instructions in a single cycle, so the effective MIPS is close to the clock rate. That is plenty for reading a sensor over SPI, running a PID loop, and driving a PWM output every millisecond. It is not a part for heavy number-crunching or real-time audio — the 256-byte RAM also caps the data buffer size. The trade-off is the ultra-low-power draw that the MSP430 architecture is known for, which keeps the battery alive for years in a field-deployed node. The part is RoHS3 compliant. ## SPI and UART — two serial interfaces on the same die The MSP430F123IRHBT provides both SPI and UART/USART connectivity. This lets a single MCU talk to a SPI sensor (e.g., a temperature or pressure transducer) and simultaneously communicate over a UART link to a host controller or a radio module. No need for a second MCU or a software bit-bang implementation — the hardware handles both. The 22 I/O lines leave room for additional GPIOs for chip selects, interrupts, or status LEDs. ## Industrial temperature range — rated for the factory floor This MCU can sit inside an outdoor telecom cabinet, a factory automation module, or an engine-bay-adjacent controller without derating.","metaTitle":"TI MSP430F123IRHBT 16-bit MCU, 8KB Flash, 8MHz, 32-VQFN","metaDescription":"Texas Instruments MSP430F123IRHBT 16-bit MCU with 8KB Flash, 256B RAM, 8MHz core, SPI/UART, -40°C to 85°C, 32-VQFN. Active lifecycle.","metaKeywords":null},"attributes":{"series":"MSP430x1xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"8MHz","Series":"MSP430x1xx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"256 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"POR, PWM, WDT","Connectivity":"SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"22","Core Processor":"MSP430 CPU16","Package / Case":"32-VFQFN Exposed Pad","Product Status":"Active","Data Converters":"Slope A/D","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F123","Program Memory Size":"8KB (8K x 8 + 256B)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"32-VQFN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.7800","priceTiers":[{"qty":1,"price":"$7.78000","currency":"USD"},{"qty":10,"price":"$6.99100","currency":"USD"},{"qty":25,"price":"$6.60960","currency":"USD"},{"qty":100,"price":"$5.72830","currency":"USD"},{"qty":250,"price":"$5.43456","currency":"USD"},{"qty":500,"price":"$4.87642","currency":"USD"},{"qty":1250,"price":"$4.11264","currency":"USD"},{"qty":2500,"price":"$3.90701","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ec6de63ed9468b19219071451a99871b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F123IRHBT/alternatives.json"},"ai":{"faq":[{"question":"Can MSP430F123IRHBT be used with SPI and UART peripherals?","answer":"Yes. The MSP430F123IRHBT includes both SPI and UART/USART connectivity, so it can interface with SPI sensors and UART-based hosts or radios simultaneously without external glue logic."},{"question":"What is MSP430F123IRHBT's listed speed and series?","answer":"The MSP430F123IRHBT runs at 8 MHz and belongs to the MSP430x1xx series. It uses the MSP430 CPU16 core and is a 16-bit device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F123IRHBT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F123IRHBT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}