{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430G2121IN14","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430G2121IN14","canonicalUrl":"https://icboms.com/texas-instruments/MSP430G2121IN14","factsUrl":"https://icboms.com/api/mcp/products/MSP430G2121IN14","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430G2xx series, MSP430G2121IN14, 16-Bit Microcontroller, 16MHz, 1KB (1K x 8) FLASH, 128 x 8 RAM, I²C, SPI, 10 I/O, 1.8V ~ 3.6V, -40°C ~ 85°C, Through Hole, 14-DIP (0.300\", 7.62mm), 14-PDIP.","salesMarkdown":"## 16 MHz 16-bit MCU with 1 KB Flash — what the memory budget means The 1 KB Flash is the smallest in the G2xx series — enough for a single control loop, a few sensor reads, or a simple state machine, but it rules out any RTOS or protocol stack beyond a basic I²C or SPI slave. The 128-byte RAM limits data buffers to a handful of bytes; expect to use Flash for lookup tables and constants. This part is aimed at cost-sensitive, low-pin-count embedded control where every byte of memory is budgeted. ## Industrial temperature range and through-hole package The 14-pin PDIP through-hole package is breadboard-friendly and easy to hand-solder, making it a common choice for prototyping and low-volume production. ## On-chip peripherals and I/O The device integrates a brown-out detect/reset, power-on reset, PWM timer, and watchdog timer. It offers 10 general-purpose I/O pins and serial connectivity via I²C and SPI. No successor part has been designated.","metaTitle":"Texas Instruments MSP430G2121IN14 16-bit MCU, 16 MHz","metaDescription":"Texas Instruments MSP430G2121IN14 16-bit MCU, 16 MHz core, 1 KB Flash, 128 B RAM, 10 I/O, I²C/SPI, -40°C to 85°C, 14-PDIP.","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":"Tube","RAM Size":"128 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, SPI","Mounting Type":"Through Hole","Number of I/O":"10","Core Processor":"MSP430 CPU16","Package / Case":"14-DIP (0.300\\\", 7.62mm)","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-PDIP","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7256","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dcffd4e87ef2e9a7c45ca4c675b25e04.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430G2121IN14/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MSP430G2121IN14 in the MSP430G2xx family?","answer":"Within the MSP430G2xx series, the MSP430G2131IN14 is a pin-compatible upgrade with 2 KB Flash and 128 bytes RAM, sharing the same 14-pin PDIP footprint and peripheral set. The MSP430G2201IN14 offers 2 KB Flash and 128 bytes RAM but lacks the I²C/SPI connectivity. For a direct drop-in with more program memory, the MSP430G2131IN14 is the closest match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430G2121IN14","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430G2121IN14 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}}