{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1911-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1911-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1911-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1911-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series LM3S1911-IBZ50-A2T, 32-bit single-core MCU, 50MHz, 256KB Flash, 64KB SRAM, 60 I/O, 2.25V–2.75V supply, -40°C to 85°C, 108-BGA (10x10 mm).","salesMarkdown":"## 256 KB Flash, 64 KB SRAM — memory sizing for the BOM The 256 KB program Flash (organized as 256K x 8) and 64 KB SRAM (64K x 8) place this MCU in the mid-range tier of the Stellaris family. For a design that needs a moderate firmware image — say, a control loop with a communication stack and local data logging — this combination avoids external memory and keeps the BOM simple. The Flash is field-programmable, so firmware updates are possible over the UART or SPI bootloader. ## Connectivity and peripherals — what is on-chip The 60 I/O pins give enough headroom for a sensor array, a small keypad, or a parallel LCD interface without a port expander. This part carries an official obsolete status from the manufacturer. Any lot found on the open market should be checked for date-code consistency and authenticity, especially if the official last-time-buy window has closed.","metaTitle":"LM3S1911-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S1911-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64KB SRAM, 60 I/O, -40°C to 85°C, 108-BGA.","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":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1911","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.7900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/76cedae791b8f19cc703d1f7efaf9731.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1911-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1911-IBZ50-A2T obsolete?","answer":"Yes, the manufacturer has marked this part as obsolete. There is no official replacement listed in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1911-IBZ50-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1911-IBZ50-A2T 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}}