{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F6631IPZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F6631IPZR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F6631IPZR","factsUrl":"https://icboms.com/api/mcp/products/MSP430F6631IPZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series 16-bit microcontroller, MSP430F6631IPZR, 20MHz core, 192KB Flash, 18K x 8 RAM, USB 2.0, 74 I/O, 100-LQFP (14x14 mm), -40°C to 85°C, 1.8V to 3.6V supply.","salesMarkdown":"## 20MHz CPUXV2 core with USB 2.0 The MSP430F6631IPZR is a 16-bit MCU from the MSP430F6xx series, built around the MSP430 CPUXV2 core running at 20MHz. It integrates a full-speed USB 2.0 peripheral (device/host/OTG) alongside I²C, IrDA, LINbus, SCI, SPI, and UART/USART serial interfaces — a single-chip anchor for a mixed-signal control board that also needs to talk to a host PC over USB. ## 192KB Flash, 18K RAM — memory budget Program memory is 192KB of Flash (192K x 8), with 18K x 8 of SRAM. For a typical USB data-logger application, the Flash holds the firmware stack plus a lookup table; the 18KB RAM leaves room for a 4KB USB buffer and a moderate-size circular buffer for sensor data before requiring external memory. ## 74 GPIO in 100-LQFP The 100-LQFP package (14x14 mm body) brings out 74 general-purpose I/O pins. Peripheral set includes Brown-out Detect/Reset, DMA, POR, PWM, and WDT — enough to drive a small keypad, an LCD segment driver, and several PWM-controlled actuators without external port expanders. Texas Instruments has marked the MSP430F6631IPZR as Obsolete.","metaTitle":"MSP430F6631IPZR MCU, 20MHz, 192KB Flash, USB, 100-LQFP","metaDescription":"Texas Instruments MSP430F6631IPZR 16-bit MCU, 20MHz, 192KB Flash, 18K RAM, USB 2.0, I²C/SPI/UART, 74 GPIO, -40 to 85°C, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"MSP430F6xx","Package":"Tape & Reel (TR)","RAM Size":"18K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SCI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"74","Core Processor":"MSP430 CPUXV2","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F6631","Program Memory Size":"192KB (192K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.0990","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e6afd0ec93281fce308ef81d90be6627.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F6631IPZR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MSP430F6631IPZR?","answer":"A board-level redesign may be required for a functional replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F6631IPZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F6631IPZR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T03:06:17.216Z","lastPublished":"2026-07-21T03:06:17.216Z","indexable":true}}