{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F2121IDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F2121IDWR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F2121IDWR","factsUrl":"https://icboms.com/api/mcp/products/MSP430F2121IDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F2xx series 16-bit MCU, MSP430F2121IDWR, 16 MHz, 4KB Flash, 256B RAM, 16 I/O, 1.8V-3.6V, -40°C to 85°C, 20-SOIC.","salesMarkdown":"## 16-bit MSP430 core with 4KB Flash — fit for sensor and control loops The slope A/D converter handles basic analog sensing without an external ADC. ## Industrial temperature and wide supply — deployment context The 1.8V to 3.6V supply range means it can run directly from a 3.6V Li-ion cell or a 1.8V regulated rail without a secondary LDO. TI lists the MSP430F2121IDWR as Active (current production). The MSP430F2xx series has broad distribution coverage.","metaTitle":"Texas Instruments MSP430F2121IDWR 16-bit MCU, 4KB Flash","metaDescription":"MSP430F2121IDWR: 16-bit MCU, 4KB Flash, 256B RAM, 16 MHz, -40°C to 85°C, 1.8V-3.6V. Active lifecycle.","metaKeywords":null},"attributes":{"series":"MSP430F2xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"16MHz","Series":"MSP430F2xx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"256 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"-","Mounting Type":"Surface Mount","Number of I/O":"16","Core Processor":"MSP430 CPU16","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","Data Converters":"Slope A/D","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F2121","Program Memory Size":"4KB (4K x 8 + 256B)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"20-SOIC","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1000","priceTiers":[{"qty":1,"price":"$3.10000","currency":"USD"},{"qty":10,"price":"$2.78600","currency":"USD"},{"qty":25,"price":"$2.62800","currency":"USD"},{"qty":100,"price":"$2.23910","currency":"USD"},{"qty":250,"price":"$2.10240","currency":"USD"},{"qty":500,"price":"$1.83960","currency":"USD"},{"qty":1000,"price":"$1.52424","currency":"USD"},{"qty":2000,"price":"$1.41912","currency":"USD"},{"qty":6000,"price":"$1.36656","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/915f3387ecbce04a8fd7c7e9a4da9617.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F2121IDWR/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent or replacement for MSP430F2121IDWR?","answer":"The evidence does not carry an official second-source or direct replacement. For a higher-performance alternative within TI's portfolio, the F280041PZQR (C2000 C28x core, 100 MHz, 32-bit) is a different architecture and would require a full redesign — not a pin-compatible swap."},{"question":"Is MSP430F2121IDWR compatible with 3.3V logic?","answer":"Yes. The supply range is 1.8V to 3.6V, so 3.3V logic levels are within spec. The I/O pins are 5V-tolerant on most MSP430F2xx devices, but verify the absolute maximum ratings in the datasheet for the specific pin function."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F2121IDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F2121IDWR 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}}