{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1J11-IQC50-C0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1J11-IQC50-C0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1J11-IQC50-C0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1J11-IQC50-C0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1J11-IQC50-C0T, 32-bit MCU, 50 MHz, 128 KB Flash, 20 KB RAM, 67 I/O, 100-LQFP, -40 to 85 °C.","salesMarkdown":"The LM3S1J11-IQC50-C0T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 1000 series, running at 50 MHz with 128 KB of Flash and 20 KB of RAM. 50 MHz on a Cortex-M3 is a mid-range speed grade. It handles Modbus polling, keypad scanning, and a small real-time OS without breaking a sweat, but it won't run a high-rate FFT or a multi-axis servo loop at tight update intervals. For the BOM, that means the designer can pair it with a slower external Flash or a standard crystal without worrying about signal-integrity margins on the bus. ## 128 KB Flash, 20 KB RAM — memory budget check 128 KB of program Flash and 20 KB of SRAM are enough for a single-protocol stack (say, Modbus RTU plus a simple UI) and a few hundred lines of application code. If the firmware needs a TCP/IP stack, a GUI library, or data logging, the 20 KB RAM will be tight — the designer should profile the heap and stack usage early. The Flash is field-reprogrammable, so firmware updates are possible over the UART or I²C bootloader. This part is obsolete per the manufacturer. No last-time-buy window remains open. For a repair bench or a legacy BOM line, the only channel is the independent surplus and broker market. ## Peripherals and integration note","metaTitle":"LM3S1J11-IQC50-C0T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1J11-IQC50-C0T – Stellaris ARM Cortex-M3S 1000 MCU, 50 MHz, 128 KB Flash, 20 KB RAM, 67 I/O, -40 to 85°C. Obsolete – sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tape & Reel (TR)","RAM Size":"20K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1J11","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/289a17a5d668d4d2eb268ac847fb8dc1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is LM3S1J11-IQC50-C0T's core speed?","answer":"The core runs at 50 MHz, which is a mid-range speed for the Cortex-M3 family, suitable for control and communication tasks but not high-rate DSP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1J11-IQC50-C0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1J11-IQC50-C0T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}