{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F67621IPN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F67621IPN","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F67621IPN","factsUrl":"https://icboms.com/api/mcp/products/MSP430F67621IPN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F67621IPN, MSP430F6xx series, 16-bit MSP430 CPUXV2 @ 25 MHz, 64 KB Flash / 4 KB RAM, 3×24b Sigma-Delta + 8×10b ADC converters, 52 I/O, I2C/SPI/UART/IrDA, 1.8–3.6 V single supply, internal oscillator, -40°C to 85°C, 80-LQFP (12×12 mm) Tray.","salesMarkdown":"The Texas Instruments MSP430F67621IPN is a 16-bit ultra-low-power microcontroller from the MSP430F6xx series, built around the MSP430 CPUXV2 core clocked at 25 MHz. The 52 general-purpose I/O lines and serial interfaces (I2C, SPI, UART/USART, IrDA) support connection to metrology front-ends, communication modules, and display controllers. Operating from a single 1.8 V to 3.6 V supply with an internal oscillator, it is rated over the industrial temperature range of -40°C to 85°C and packaged in an 80-LQFP (12×12 mm) footprint. ## Three 24-bit sigma-delta ADCs — the metrology core The three 24-bit sigma-delta converters are the part's primary differentiator. They enable simultaneous sampling of voltage and current phases in polyphase energy meters, or multi-channel precision measurement in weigh scales and flow transmitters. The 24-bit resolution provides the dynamic range needed to maintain accuracy over a wide input span without external gain stages. For a calibration technician, the question is long-term drift: the sigma-delta modulator's inherent linearity holds up well, but the reference accuracy and temperature coefficient will determine whether the system stays within tolerance over a year's operation. ## 25 MHz CPUXV2 core — throughput for real-time math The 25 MHz clock rate on the MSP430 CPUXV2 core is sufficient for the multiply-accumulate operations required by metrology algorithms and digital filtering. It is not a high-end DSP, but the combination of the hardware multiplier and the sigma-delta converters means the MCU can compute active, reactive, and apparent power in firmware without an external coprocessor. The 64 KB Flash holds the metrology library plus a communication stack (Modbus, DLMS, or custom protocol) with room to spare.","metaTitle":"TI MSP430F67621IPN 16-bit MCU, 25 MHz, 64 KB Flash, 3×24-bit Σ-Δ ADC","metaDescription":"Texas Instruments MSP430F67621IPN 16-bit MCU with 25 MHz CPUXV2 core, 64 KB Flash, 4 KB RAM, 3×24-bit sigma-delta ADCs, 52 I/O, -40°C to 85°C, 80-LQFP. Active production, available","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"25MHz","title":"MSP430F67621IPN","Series":"MSP430F6xx","Package":"Tray","RAM Size":"4K x 8","Core Size":"16-Bit","Peripherals":"Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 3x24b Sigma Delta Converter","Connectivity":"I2C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"52","Core Processor":"MSP430 CPUXV2","Package / Case":"80-LQFP","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F67621","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"80-LQFP (12x12)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.3678","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/259cc4f7b9b01e854cc1b1bc7056b3d1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F67621IPN/alternatives.json"},"ai":{"faq":[{"question":"What is MSP430F67621IPN's CPU speed?","answer":"The MSP430 CPUXV2 core runs at 25 MHz, which is the listed maximum clock frequency."},{"question":"What is the closest pin-compatible alternative to MSP430F67621IPN?","answer":"Within the MSP430F6xx series, pin-compatible alternatives include the MSP430F67621A and MSP430F67641 variants, which share the same 80-LQFP footprint and peripheral set but differ in Flash/RAM density and ADC channel count. Verify the exact memory and converter requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F67621IPN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F67621IPN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-11T19:11:19.382Z","lastPublished":"2026-07-11T19:11:19.382Z","indexable":true}}