{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1J11-IQC50-C1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1J11-IQC50-C1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1J11-IQC50-C1","factsUrl":"https://icboms.com/api/mcp/products/LM3S1J11-IQC50-C1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series LM3S1J11-IQC50-C1, 32-bit single-core MCU, 50MHz, 128KB (128K x 8) Flash, 20K x 8 RAM, 100-LQFP, -40°C to 85°C.","salesMarkdown":"The LM3S1J11-IQC50-C1 is a 32-bit ARM Cortex-M3 MCU from TI's Stellaris 1000 series, clocked at 50 MHz with 128 KB of Flash and 20K x 8 of RAM. It has 67 I/O lines, an 8-channel 10-bit ADC, and serial interfaces including I²C, SPI, UART, and LIN. The 50 MHz Cortex-M3 core delivers enough throughput for real-time control loops (PID, encoder polling) and protocol handling (Modbus RTU, CAN) without external RAM for moderate-size firmware. The 128 KB Flash holds a mid-complexity application stack; the 20 KB RAM handles local data buffers and stack. If your firmware exceeds that, you are looking at a different density tier in the Stellaris family or a newer Cortex-M4 part. ## Package and integration note","metaTitle":"LM3S1J11-IQC50-C1 Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB Flash","metaDescription":"LM3S1J11-IQC50-C1 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 1000 series. 50MHz core, 128KB Flash, 20K x 8 RAM, 67 I/O, industrial temp. Obsolete — sourced to order against R","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":"Tray","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/289a17a5d668d4d2eb268ac847fb8dc1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1J11-IQC50-C1/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1J11-IQC50-C1 obsolete?","answer":"Yes, the LM3S1J11-IQC50-C1 is obsolete. The manufacturer has discontinued production; no official successor is listed. Sourcing is limited to surplus and broker inventory — quoted to order against an RFQ."},{"question":"What is the replacement for LM3S1J11-IQC50-C1?","answer":"No official direct replacement is listed in the manufacturer's records. For a pin-compatible alternative, a cross-reference search within the Stellaris 1000 series or a migration to a newer TI Cortex-M4 part (e.g., TM4C series) may be required — verify pinout and peripheral compatibility against your BOM."},{"question":"What are the key specifications of LM3S1J11-IQC50-C1?","answer":"The MCU runs at 50 MHz with a 32-bit ARM Cortex-M3 core, 128 KB Flash, 20K x 8 RAM, 67 I/O, an 8-channel 10-bit ADC, and serial interfaces including I²C, SPI, UART, and LIN. It operates from 1.08 V to 3.6 V over -40°C to 85°C in a 100-LQFP package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1J11-IQC50-C1","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-C1 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}}