{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S101-IQN20-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S101-IQN20-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S101-IQN20-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S101-IQN20-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 100 microcontroller, LM3S101-IQN20-C2, 32-bit single-core, 20 MHz, 8 KB Flash, 2 KB RAM, 48-LQFP.","salesMarkdown":"## 20 MHz Cortex-M3 with 8 KB Flash — the memory ceiling for control-loop firmware The LM3S101-IQN20-C2: If your firmware footprint exceeds this, step up to the 32 KB or 64 KB variants in the same family. On-chip peripherals include brown-out detect, POR, PWM, and a watchdog timer — enough for a standalone motor or valve controller without an external supervisor. Serial connectivity covers Microwire, SPI, SSI, and UART/USART, which handles most sensor and actuator interfaces in a compact panel. There are 18 GPIOs available. ## NRND status — what it means for the BOM Texas Instruments lists the LM3S101-IQN20-C2 as NRND (Not Recommended for New Designs). This means it is still available for existing production but will not be supported for new projects. For BOM lines already using this MCU, independent distribution can supply it against an RFQ.","metaTitle":"Texas Instruments LM3S101-IQN20-C2 ARM Cortex-M3 MCU, 20 MHz","metaDescription":"Texas Instruments LM3S101-IQN20-C2 Stellaris ARM Cortex-M3 MCU, 20 MHz, 8 KB Flash, 2 KB RAM, 48-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"Stellaris® ARM® Cortex®-M3S 100","Package":"Tray","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-LQFP","Product Status":"Not For New Designs","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-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.4142","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S101-IQN20-C2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S101-IQN20-C2?","answer":"No official pin-compatible successor is listed by Texas Instruments. Higher-density Stellaris parts in the same 48-LQFP package share the same Cortex-M3 core but have different memory maps and peripheral registers — a firmware port is needed. The closest functional fit is another Stellaris MCU with a larger Flash and RAM footprint, but pin compatibility must be verified against the specific package variant."},{"question":"Where can I buy LM3S101-IQN20-C2?","answer":"This part is sourced through independent distribution. No stock-holding claim is made here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S101-IQN20-C2","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-IQN20-C2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:39:31.235Z","lastPublished":"2026-07-21T02:39:31.235Z","indexable":true}}