{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F6638IZQWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F6638IZQWR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F6638IZQWR","factsUrl":"https://icboms.com/api/mcp/products/MSP430F6638IZQWR","rawCanonicalId":null},"summary":{"shortDescription":"TI MSP430F6xx series 16-bit MCU, MSP430 CPUXV2 core, 20 MHz, 256 KB Flash, 18 KB RAM, USB 2.0, 12-bit ADC/DAC, 74 I/O, 113-VFBGA, -40 to 85°C.","salesMarkdown":"## USB and serial connectivity — interface compatibility The MSP430F6638IZQWR: The USB 2.0 full-speed peripheral is the headline interface — it answers the question of whether this part can talk to a host PC or a USB-to-serial bridge without an external PHY. The remaining serial interfaces (I²C, SPI, UART, IrDA, LINbus) cover most industrial sensor and actuator protocols. The 74 general-purpose I/O pins, mapped to the 113-VFBGA package, give enough flexibility for a parallel LCD or a keypad matrix alongside the serial buses. ## Industrial temperature range and supply voltage Rated for -40 to 85°C ambient, this MCU is suited for factory-floor controllers, outdoor telecom equipment, and HVAC panels — not for under-hood or extended-temperature environments. The supply range of 1.8 V to 3.6 V allows single-cell Li-ion or two alkaline cells to power the device directly, which simplifies the power rail in battery-operated designs. The brown-out detect and POR peripherals ensure clean startup and reset behavior across the voltage range. ## Obsolete — sourcing reality for the BOM line","metaTitle":"TI MSP430F6638IZQWR 16-bit MCU, 20 MHz, 256 KB Flash, USB","metaDescription":"MSP430F6638IZQWR 16-bit MCU with 20 MHz CPU, 256 KB Flash, 18 KB RAM, USB, 12-bit ADC/DAC. Obsolete — sourced to order against RFQ. Industrial temp -40 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":"MSP430F6xx","Package":"Tape & Reel (TR); Cut Tape (CT)","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; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F6638","Program Memory Size":"256KB (256K 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":"$8.8658","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/511e0877b97b0f33bcd826c521b39bc9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F6638IZQWR/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for MSP430F6638IZQWR?","answer":"No official replacement part number is listed in the lifecycle record. The base product MSP430F6638 shares the same die and package; the IZQWR suffix indicates tape-and-reel packaging. For a functional replacement, evaluate other MSP430F6xx variants with matching Flash, RAM, USB, and ADC/DAC resources — verify pin compatibility against the 113-BGA Microstar Junior footprint before committing the BOM."},{"question":"Where can I buy MSP430F6638IZQWR?","answer":"This obsolete part is sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm position."},{"question":"Does MSP430F6638IZQWR have USB?","answer":"Yes, the connectivity list includes USB alongside I²C, IrDA, LINbus, SCI, SPI, UART/USART — it has a full-speed USB 2.0 peripheral."},{"question":"What is MSP430F6638IZQWR's listed speed?","answer":"The CPU core runs at 20 MHz on the MSP430 CPUXV2 processor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F6638IZQWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F6638IZQWR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}