{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F6638IPZ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F6638IPZ","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F6638IPZ","factsUrl":"https://icboms.com/api/mcp/products/MSP430F6638IPZ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F6xx series 16-bit MCU, MSP430 CPUXV2 core, 20 MHz, 256 KB Flash, 18 KB RAM, USB and serial interfaces, 12-bit ADC/DAC, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## What the MSP430F6638IPZ brings to a mixed-signal control board The part integrates a 16-channel 12-bit ADC and a dual 12-bit DAC, so a sensor-interface or closed-loop actuator design can skip an external converter. At 20 MHz the CPUXV2 pipeline executes most instructions in one or two cycles, so a tight 50 µs control loop or a 115200 baud UART interrupt handler has margin. ## 256 KB Flash and 18 KB RAM — firmware and buffer budget 256 KB of Flash is sized for a moderate application: a USB CDC class driver, a Modbus RTU stack, and a few hundred lines of application code fit without squeezing. The 18 KB RAM (organized as 18K x 8) supports double-buffered USB endpoints and a 4 KB DMA buffer for ADC samples without spilling into stack space. Brown-out detect and POR are on-chip, so external reset supervision is optional. ## USB plus serial — one chip talks to everything The USB peripheral handles device, host, or OTG roles. Alongside it, the serial interfaces cover I²C, SPI, UART, LIN, and IrDA — enough to bridge a legacy RS-485 sensor network to a USB-connected PC or to aggregate data from multiple digital sensors over I²C. With 74 I/O lines in the 100-LQFP package, most of the pins stay available even after wiring up the serial buses. ## Package and supply — what to plan for on the board The 100-LQFP (14x14 mm body) is a hand-solderable surface-mount package with 0.5 mm pitch — no BGA rework needed. The internal oscillator and brown-out reset reduce external component count to a decoupling cap and a pull-up on the reset line. ## Lifecycle and sourcing posture Texas Instruments lists the MSP430F6638IPZ with an Active product status.","metaTitle":"Texas Instruments MSP430F6638IPZ 16-Bit MCU, 20 MHz","metaDescription":"Texas Instruments MSP430F6638IPZ 16-bit MCU with MSP430 CPUXV2 core at 20 MHz, 256 KB Flash, 18 KB RAM, USB and serial connectivity, 12-bit ADC/DAC, industrial","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":"Tube","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":"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":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.1500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/511e0877b97b0f33bcd826c521b39bc9.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F6638IPZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F6638IPZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T13:04:25.624Z","lastPublished":"2026-07-16T13:04:25.624Z","indexable":true}}