{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F6631IPZ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F6631IPZ","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F6631IPZ","factsUrl":"https://icboms.com/api/mcp/products/MSP430F6631IPZ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series, MSP430F6631IPZ 16-bit MCU, 20 MHz MSP430 CPUXV2 core, 192 KB FLASH, 18 KB RAM, USB / UART / SPI / I²C / LINbus, 74 I/O, 1.8–3.6 V, -40 to 85 °C, 100-LQFP tray.","salesMarkdown":"## What the 20 MHz core and 192 KB flash mean for your firmware budget The MSP430F6631IPZ: The MSP430 CPUXV2 core runs at 20 MHz — a 16-bit RISC pipeline that executes most instructions in a single cycle, so the throughput ceiling is higher than the raw clock suggests. The 192 KB on-chip flash and 18 KB RAM leave room for a USB stack, a real-time operating system footprint, and application code without external memory. For a data-logging or sensor-fusion project, the flash holds roughly 48,000 lines of compiled C before the linker starts complaining. ## USB plus serial connectivity — one chip talks to the host and the field bus The integrated USB 2.0 peripheral handles host or device mode without an external PHY — the 48 MHz oscillator is generated on-chip from the internal DCO. Alongside USB, the connectivity block includes I²C, SPI, UART/USART, LINbus, and IrDA, so a single MSP430F6631IPZ can bridge a USB host to a LIN sensor network or log data over UART to a serial console. The 74 general-purpose I/O pins are enough to drive a character LCD, read a keypad matrix, and still leave spare lines for status LEDs. ## Industrial temperature grade and supply range — where this MCU lives The internal oscillator eliminates the external crystal for many applications, though the USB peripheral still requires a stable clock source for full-speed operation. ## 100-LQFP package — PCB layout and board-fit considerations Housed in a 100-pin LQFP with a 14×14 mm body, the MSP430F6631IPZ uses a 0.5 mm pitch that requires a 4-layer PCB for clean fan-out of the inner rows.","metaTitle":"Texas Instruments MSP430F6631IPZ MCU, 20 MHz, 192 KB Flash","metaDescription":"Texas Instruments MSP430F6631IPZ 16-bit MCU, 20 MHz MSP430 CPUXV2 core, 192 KB flash, 18 KB RAM, USB/UART/SPI/I²C, 74 I/O, -40 to 85 °C, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"MSP430F6xx","Package":"Tray","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":"Active","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/MSP430F6631IPZ/alternatives.json"},"ai":{"faq":[{"question":"What is the MSP430F6631IPZ's core speed and memory size?","answer":"The MSP430 CPUXV2 core runs at 20 MHz."},{"question":"What serial interfaces does the MSP430F6631IPZ support?","answer":"The device includes USB 2.0, I²C, SPI, UART/USART, LINbus, and IrDA. The USB peripheral operates in device or host mode without an external PHY, and the serial interfaces can run concurrently for bridging applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F6631IPZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F6631IPZ 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}}