{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430G2121IPW14R","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430G2121IPW14R","canonicalUrl":"https://icboms.com/texas-instruments/MSP430G2121IPW14R","factsUrl":"https://icboms.com/api/mcp/products/MSP430G2121IPW14R","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430G2121IPW14R, MSP430G2xx series 16-bit MCU, 16 MHz, 1 KB Flash, 128 x 8 RAM, I²C/SPI, 10 I/O, 1.8V–3.6V, -40°C–85°C, 14-TSSOP.","salesMarkdown":"## What this 16-bit MCU brings to a low-power BOM ## 1 KB Flash and 128 bytes RAM — sizing the firmware budget The 1 KB Flash (1 K x 8) is the tightest constraint on this part. It suits small firmware images — a bootloader stub, a state machine for a button-and-LED interface, or a periodic sensor read with I²C output. The 128 x 8 RAM limits runtime data storage; any significant buffer or lookup table will push you to a larger G2xx sibling with 512 B or more RAM. For a procurement decision: if your compiled binary exceeds about 900 bytes, this part is out of fit. The MSP430G2xx series offers pin-compatible upgrades with up to 16 KB Flash and 512 B RAM on the same 14-TSSOP footprint, so the board layout stays the same if you need to step up. ## 16 MHz core — timing budget for the application At this clock rate, the MSP430 CPU16 executes most instructions in one or two cycles, giving roughly 8–16 MIPS of throughput — enough for polling a sensor at a few kilohertz or bit-banging a custom protocol, but not for heavy DSP or high-speed data logging. There is no last-time-buy risk on this line.","metaTitle":"TI MSP430G2121IPW14R 16-bit MCU, 16 MHz, 1 KB Flash","metaDescription":"Texas Instruments MSP430G2121IPW14R 16-bit MCU, 16 MHz core, 1 KB Flash, 128 B RAM, I²C/SPI, 10 GPIO, -40°C to 85°C, 14-TSSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"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":"14-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430G2121","Program Memory Size":"1KB (1K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"14-TSSOP","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7459","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dcffd4e87ef2e9a7c45ca4c675b25e04.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430G2121IPW14R/alternatives.json"},"ai":{"faq":[{"question":"What are the alternatives for MSP430G2121IPW14R?","answer":"Within the MSP430G2xx series, pin-compatible alternatives in the same 14-TSSOP package include parts with larger Flash and RAM — for example, the MSP430G2131 offers 2 KB Flash and 256 B RAM, and the MSP430G2153 offers 4 KB Flash and 512 B RAM. All share the same footprint and peripheral set, making them drop-in upgrades if the firmware outgrows 1 KB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430G2121IPW14R","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430G2121IPW14R 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}}