{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430G2221IRSA16T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430G2221IRSA16T","canonicalUrl":"https://icboms.com/texas-instruments/MSP430G2221IRSA16T","factsUrl":"https://icboms.com/api/mcp/products/MSP430G2221IRSA16T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430G2xx series, MSP430G2221IRSA16T, 16-bit MCU, 16 MHz, 2 KB Flash, 128 x 8 RAM, I²C, SPI, 10 I/O, 1.8V to 3.6V, -40°C to 85°C, 16-QFN (4x4).","salesMarkdown":"## Why 2 KB Flash and 128 B RAM matter for this BOM line The 10 GPIOs, internal oscillator, and integrated brown-out detect / POR / WDT peripherals mean minimal external support components. ## 16 MHz core — timing budget for the firmware At 16 MHz the MSP430 CPU16 executes most instructions in one or two clock cycles, so worst-case ISR latency and loop throughput are predictable. Pair it with the internal oscillator to save a crystal and two PCB traces; the internal oscillator is rated over the full temperature range, so no external clock source is needed for many applications. If your firmware exceeds 2 KB, move up the MSP430G2xx density ladder — this part is the entry point. Brown-out detect resets the core cleanly when the rail dips — no external supervisor needed. No end-of-life notice, no last-time-buy deadline.","metaTitle":"TI MSP430G2221IRSA16T 16-bit MCU, 16 MHz, 2 KB Flash, 16-QFN","metaDescription":"Texas Instruments MSP430G2221IRSA16T 16-bit MCU with 16 MHz core, 2 KB Flash, 128 B RAM, I²C/SPI, 10 I/O, -40 to 85°C. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":"MSP430G2xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"16MHz","Series":"MSP430G2xx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"128 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, SPI","Mounting Type":"Surface Mount","Number of I/O":"10","Core Processor":"MSP430 CPU16","Package / Case":"16-VQFN Exposed Pad","Product Status":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430G2221","Program Memory Size":"2KB (2K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"16-QFN (4x4)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4200","priceTiers":[{"qty":1,"price":"$2.42000","currency":"USD"},{"qty":10,"price":"$2.17200","currency":"USD"},{"qty":25,"price":"$2.04880","currency":"USD"},{"qty":100,"price":"$1.74570","currency":"USD"},{"qty":250,"price":"$1.63920","currency":"USD"},{"qty":500,"price":"$1.43430","currency":"USD"},{"qty":1250,"price":"$1.18842","currency":"USD"},{"qty":2500,"price":"$1.10646","currency":"USD"},{"qty":6250,"price":"$1.06548","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dcffd4e87ef2e9a7c45ca4c675b25e04.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430G2221IRSA16T/alternatives.json"},"ai":{"faq":[{"question":"How does MSP430G2221IRSA16T compare to MSP430G2231IRSA16T?","answer":"The MSP430G2231IRSA16T is a higher-density sibling with more Flash and RAM. If your firmware fits in 2 KB and 128 B RAM, the G2221 is the cost-optimized choice. If you need extra code space or data memory, move to the G2231. Both share the same 16-QFN footprint and peripheral set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430G2221IRSA16T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430G2221IRSA16T 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}}