{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S101-IGZ20-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S101-IGZ20-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S101-IGZ20-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S101-IGZ20-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 100 microcontroller, LM3S101-IGZ20-C2T, 32-bit single-core, 20MHz, 8KB Flash, 2KB RAM, 48-VFQFN Exposed Pad, Tape & Reel.","salesMarkdown":"## Cortex-M3 core at 20 MHz — on-chip memory budget The LM3S101-IGZ20-C2T is a Stellaris® ARM® Cortex®-M3S 100 microcontroller from Texas Instruments, built around a 32-bit ARM Cortex-M3 core clocked at 20 MHz. The 8 KB on-chip Flash and 2 KB SRAM define the application ceiling: a lightweight control loop with a small state machine fits comfortably, but a full RTOS with a TCP/IP stack overflows the RAM budget before the first task runs. ## Package, footprint, and thermal pad The exposed paddle is the primary thermal path — a layout without the via pattern leaves the die near the abs-max junction temperature at full load in a 85°C ambient. ## Peripheral set and serial interfaces On-chip serial connectivity includes Microwire, SPI, SSI, and UART/USART — enough for a SPI flash, a UART debug console, and a sensor interface without external GPIO expansion. Internal oscillator eliminates the external crystal for cost-sensitive BOMs, though the accuracy is lower than a ceramic resonator for timing-critical CAN or USB applications (neither is on this part). Brown-out detect, POR, PWM, and WDT are built in, reducing the need for external supervisory ICs.","metaTitle":"LM3S101-IGZ20-C2T Texas Instruments Cortex-M3 MCU, 20MHz","metaDescription":"Texas Instruments LM3S101-IGZ20-C2T Stellaris ARM Cortex-M3 MCU, 20MHz, 8KB Flash, 2KB RAM, 48-VQFN. Active production, sourced per RFQ.","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":"Stellaris® ARM® Cortex®-M3S 100","Package":"Tape & Reel (TR)","RAM Size":"2K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"18","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-VFQFN Exposed Pad","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S101","Program Memory Size":"8KB (8K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-VQFN (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LM3S101-IGZ20-C2T and get a price?","answer":"This part is sourced through independent distribution channels. Date-code and lot traceability are verified before shipment."},{"question":"What is the closest pin-compatible alternative to LM3S101-IGZ20-C2T?","answer":"The Stellaris family shares the same Cortex-M3 core, but alternative order codes differ in Flash/RAM size and package — verify the BOM position against the specific pinout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S101-IGZ20-C2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S101-IGZ20-C2T 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}}