{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F122IRHBT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F122IRHBT","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F122IRHBT","factsUrl":"https://icboms.com/api/mcp/products/MSP430F122IRHBT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430x1xx series, MSP430F122IRHBT, 16-Bit MCU, 8MHz, 4KB (4K x 8 + 256B) FLASH, 256 x 8 RAM, SPI, UART/USART, 22 I/O, 1.8V ~ 3.6V, -40°C ~ 85°C, 32-VFQFN Exposed Pad.","salesMarkdown":"## 16-bit MSP430 for low-power control — 8 MHz, 4 KB Flash, 256 B RAM On-chip peripherals include POR, PWM, and WDT, plus SPI and UART/USART connectivity for interfacing with sensors, displays, or a host controller. The slope A/D converter handles slow analog inputs without an external ADC. ## Memory budget — what 4 KB Flash and 256 B RAM mean for your firmware With 4 KB of Flash and 256 bytes of RAM, this MCU is not a candidate for complex protocol stacks or large lookup tables. The firmware fits a single control loop, a few state machines, and a modest communication buffer. The 256 x 8 RAM allocation means careful variable sizing — use byte-wide flags and avoid large arrays. The 256 B boot ROM area (included in the 4 KB + 256 B program memory) is typically reserved for the interrupt vector table and startup code. For designs that need more headroom, the MSP430x1xx family offers higher-density Flash options, but the pin-compatible migration path requires checking the exact package variant. At the low end, 1.8 V operation keeps the MCU alive during battery discharge, extending system runtime. The MSP430 architecture is known for sub-µA sleep currents, though the exact standby draw depends on the clock configuration and enabled peripherals. The ROHS3 compliance covers current environmental regulations across major markets. ## Package and footprint — 32-VQFN (5x5 mm) Housed in a 32-VFQFN exposed-pad package (supplier device package 32-VQFN, 5x5 mm), this MCU takes minimal board area.","metaTitle":"Texas Instruments MSP430F122IRHBT 16-bit MCU, 8MHz","metaDescription":"Texas Instruments MSP430F122IRHBT 16-bit MCU, 8MHz core, 4KB Flash, 256B RAM, SPI/UART, industrial temp -40°C to 85°C, 32-VQFN.","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":"MSP430F122","Program Memory Size":"4KB (4K 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":"$6.3200","priceTiers":[{"qty":1,"price":"$6.32000","currency":"USD"},{"qty":10,"price":"$5.67500","currency":"USD"},{"qty":25,"price":"$5.36480","currency":"USD"},{"qty":100,"price":"$4.64960","currency":"USD"},{"qty":250,"price":"$4.41112","currency":"USD"},{"qty":500,"price":"$3.95810","currency":"USD"},{"qty":1250,"price":"$3.33816","currency":"USD"},{"qty":2500,"price":"$3.17125","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ec6de63ed9468b19219071451a99871b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F122IRHBT/alternatives.json"},"ai":{"faq":[{"question":"Can MSP430F122IRHBT be used in low-power applications?","answer":"Yes. The 8 MHz core can be clocked down or gated to match the processing demand to the power budget."},{"question":"Does MSP430F122IRHBT have an ADC?","answer":"It includes a Slope A/D converter — a simple, low-speed analog-to-digital conversion method that uses an external resistor and capacitor. This is not a successive-approximation or sigma-delta ADC; it is best for slow-varying signals like temperature or battery voltage monitoring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F122IRHBT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F122IRHBT 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}}