{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F6634IZQWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F6634IZQWT","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F6634IZQWT","factsUrl":"https://icboms.com/api/mcp/products/MSP430F6634IZQWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series, 16-bit MSP430 CPUXV2 microcontroller, MSP430F6634IZQWT, 20MHz, 192KB FLASH, 18KB RAM, USB/I2C/SPI/UART, 74 I/O, 1.8–3.6V, 113-VFBGA, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## Obsolete — sourcing the MSP430F6634IZQWT for production support Texas Instruments marks the MSP430F6634IZQWT as Obsolete. This means TI no longer manufactures the part, and the last-time-buy window is closed. For production lines that still carry this order code on the BOM, the supply channel is independent surplus and broker inventory — not the factory or its authorized distributors. No official replacement order code is listed on the TI lifecycle record for this specific package variant (113-BGA Microstar Junior). A board-spin to a different package or a later MSP430F6xx device is the typical migration path, but no pin-compatible direct substitute is documented here. ## Core and memory — what the 20MHz and 192KB Flash mean for fit The MSP430 CPUXV2 core runs at 20MHz. For a 16-bit architecture, this clock rate delivers roughly 16–20 MIPS — enough for real-time control loops in metering, sensor fusion, or USB data streaming, but not for DSP-heavy workloads that would need a Cortex-M4 or a dedicated signal processor. Program memory is 192KB of Flash, with 18KB of RAM. The Flash is plenty for a USB stack plus application code; the 18KB RAM is tight if you buffer full USB packets or run a real-time OS. A firmware engineer should budget the RAM before committing — the USB endpoint buffer alone can consume 2–4KB depending on configuration. ## Package and board integration — 113-BGA Microstar Junior The MSP430F6634IZQWT comes in a 113-VFBGA package, specifically the 113-BGA Microstar Junior with a 7x7 mm body. The 0.50 mm ball pitch requires a 4-layer PCB minimum for fan-out; two-layer boards will struggle to route all 74 I/O plus the supply and ground balls. ## Connectivity and peripheral set — USB, I2C, SPI, UART The MSP430F6634 integrates a USB 2.0 peripheral, plus I2C, SPI, UART/USART, IrDA, and LINbus. The USB module supports device-mode only (no host/OTG), so it fits applications like USB data loggers, HID interfaces, or virtual COM ports. The 16-channel 12-bit ADC handles analog sensor inputs without an external converter. On-chip peripherals include a brown-out detect, POR, DMA controller, PWM, and watchdog timer. The DMA offloads data transfers from the CPU — useful for moving ADC results or USB buffers without stalling the core.","metaTitle":"TI MSP430F6634IZQWT MCU, 20MHz, 192KB Flash, 113-BGA","metaDescription":"Texas Instruments MSP430F6634IZQWT 16-bit MCU, 20MHz, 192KB Flash, 18KB RAM, USB/I2C/SPI, 113-BGA.","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":"113-VFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F6634","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":"$6.1700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/be3aa9906242fc872718361b154e67bb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F6634IZQWT/alternatives.json"},"ai":{"faq":[{"question":"Where can I source the MSP430F6634IZQWT and how do I get a quote?","answer":"The part is sourced to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time, not listed as a live stock figure."},{"question":"What is the MSP430F6634IZQWT's listed speed and memory?","answer":"The MSP430F6634IZQWT is rated for 20MHz operation with 192KB of FLASH program memory and 18KB of SRAM."},{"question":"What is the MSP430F6634IZQWT's series and core architecture?","answer":"It belongs to the MSP430F6xx series and is built around the 16-bit MSP430 CPUXV2 core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F6634IZQWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F6634IZQWT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T03:06:37.786Z","lastPublished":"2026-07-21T03:06:37.786Z","indexable":true}}