{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F5631IZQWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F5631IZQWT","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F5631IZQWT","factsUrl":"https://icboms.com/api/mcp/products/MSP430F5631IZQWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F5631IZQWT, MSP430F5xx series, 16-bit MSP430 CPUXV2 at 20 MHz, 192 KB FLASH, 18 KB RAM, USB/UART/SPI/I²C/LINbus, 74 I/O, 1.8–3.6 V, 113-VFBGA Microstar Junior, -40°C to 85°C, Tape & Reel.","salesMarkdown":"It integrates a USB 2.0 interface alongside I²C, SPI, UART, LINbus, and IrDA, making it a fit for applications that need serial connectivity and moderate processing in a single chip. The 74 general-purpose I/O lines provide enough headroom for sensor arrays, keypads, or display interfaces without external GPIO expanders. At 20 MHz the CPUXV2 core delivers roughly 16 MIPS, enough for real-time control loops, data logging, and protocol handling (USB, serial). The 18 KB RAM is the working memory ceiling — firmware with large buffers or USB descriptors must budget carefully. ## Obsolete — planning the next move The MSP430F5631IZQWT is listed as obsolete. For production continuity, qualifying a replacement or sourcing remaining stock through independent distribution is the practical path. ## 113-VFBGA Microstar Junior — layout considerations The 113-ball VFBGA (7x7 mm, 0.5 mm pitch) demands a PCB with microvias or at least four layers for fanout.","metaTitle":"MSP430F5631IZQWT 16-bit MCU, 20 MHz, 192 KB Flash, 113-BGA","metaDescription":"Texas Instruments MSP430F5631IZQWT 16-bit MSP430 CPUXV2 at 20 MHz, 192 KB Flash, 18 KB RAM, USB/UART/SPI/I²C/LINbus, 74 I/O, 1.8–3.6 V, -40°C to 85°C","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":"MSP430F5xx","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":"113-VFBGA","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F5631","Program Memory Size":"192KB (192K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"113-BGA Microstar Junior (7x7)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1bad71ac48b4349bbe87f462858486d8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for MSP430F5631IZQWT?","answer":"No official replacement is recorded. The MSP430F5632 is a close sibling in the same family and package — verify memory and USB feature differences against your firmware requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F5631IZQWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F5631IZQWT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}