{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1968-IBZ50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1968-IBZ50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1968-IBZ50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1968-IBZ50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series microcontroller, LM3S1968-IBZ50-A2, 32-bit single-core, 50MHz, 256KB Flash, 64KB x 8 RAM, 108-LFBGA, tray.","salesMarkdown":"## Obsolete — independent-channel sourcing Texas Instruments has marked the LM3S1968-IBZ50-A2 as Obsolete. ## Core and memory for control applications It integrates 256 KB of on-chip Flash program memory and 64 KB x 8 of SRAM — sufficient for a moderate control stack, communications buffer, and data logging without external memory. 52 general-purpose I/O lines give the designer latitude for parallel buses, keypad matrices, or discrete sensor inputs. On-chip peripherals include brown-out detect, POR, PWM, and a watchdog timer. Connectivity covers I²C, IrDA, Microwire, QEI, SPI, SSI, and UART/USART — enough serial channels to interface with a display, motor encoder, and host link simultaneously. An 8-channel 10-bit ADC handles analog inputs like thermistors or potentiometers without an external converter. The internal oscillator saves a crystal on the BOM for applications that tolerate ±1–2% clock accuracy. ## 108-BGA package — layout considerations Housed in a 108-LFBGA with a 10x10 mm body, the package demands a 4-layer PCB for fan-out of the 0.50 mm pitch balls.","metaTitle":"LM3S1968-IBZ50-A2 Stellaris Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S1968-IBZ50-A2 ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64KB RAM, 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":"Tray","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, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"52","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1968","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/771abe88d51cfa2047951d43f29fd78f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S1968-IBZ50-A2 in the Stellaris family?","answer":"The Stellaris family contains several Cortex-M3 parts with similar peripheral sets, but pin compatibility varies by package and revision — a board spin may be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1968-IBZ50-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1968-IBZ50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:46:16.821Z","lastPublished":"2026-07-21T02:46:16.821Z","indexable":true}}