{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F2121IPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F2121IPW","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F2121IPW","factsUrl":"https://icboms.com/api/mcp/products/MSP430F2121IPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F2xx series MSP430F2121IPW, 16-bit MSP430 CPU16 MCU, 16 MHz, 4KB (4K x 8 + 256B) Flash, 256 x 8 RAM, 16 I/O, slope A/D, internal oscillator, 1.8 V to 3.6 V supply, -40°C to 85°C, 20-TSSOP package, Tube.","salesMarkdown":"## 16 MHz core, 4 KB Flash — sizing the processing and memory budget It packs 4 KB of program Flash and 256 x 8 bytes of RAM, which sets a tight memory ceiling — firmware must fit within that footprint, and the 256-byte RAM limits stack depth and data buffering. The 16 I/O lines and integrated slope A/D converter make it a fit for simple sensor interfaces, button scanning, and low-speed control loops where a larger Cortex-M part would be overkill. ## Peripherals and debug — what is on-chip and what is not There is no hardware I²C, SPI, or UART — communication must be bit-banged through the 16 GPIOs if needed. For designs requiring a serial bus or precise ADC, a sibling with a USCI module would be the better call. The part is RoHS3 compliant.","metaTitle":"Texas Instruments MSP430F2121IPW 16-bit MCU, 4KB Flash","metaDescription":"MSP430F2121IPW 16-bit MCU with 4KB Flash, 256B RAM, 16 MHz core, 16 I/O, slope A/D, -40°C to 85°C. Active lifecycle, RoHS3.","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":"Tube","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-TSSOP (0.173\\\", 4.40mm 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-TSSOP","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3400","priceTiers":[{"qty":1,"price":"$3.34000","currency":"USD"},{"qty":10,"price":"$3.00200","currency":"USD"},{"qty":25,"price":"$2.83760","currency":"USD"},{"qty":100,"price":"$2.45930","currency":"USD"},{"qty":250,"price":"$2.33320","currency":"USD"},{"qty":500,"price":"$2.09360","currency":"USD"},{"qty":1000,"price":"$1.76568","currency":"USD"},{"qty":2500,"price":"$1.67740","currency":"USD"},{"qty":5000,"price":"$1.61434","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/915f3387ecbce04a8fd7c7e9a4da9617.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F2121IPW/alternatives.json"},"ai":{"faq":[{"question":"Is MSP430F2121IPW obsolete?","answer":"Texas Instruments continues to produce it, and it remains RoHS3 compliant."},{"question":"What is the maximum clock speed of MSP430F2121IPW?","answer":"The MSP430 CPU16 core runs at 16 MHz. That is the maximum system clock; the flash wait state configuration must be set correctly when operating above 8 MHz to avoid bus errors."},{"question":"Can MSP430F2121IPW be programmed with Energia?","answer":"Energia supports MSP430G2xx devices natively, but the MSP430F2xx family (including the F2121) is not officially listed in the Energia board manager. You would need to use TI's Code Composer Studio or IAR Embedded Workbench with a dedicated programmer/debugger such as the MSP-FET."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F2121IPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F2121IPW 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}}