{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S8971-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S8971-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S8971-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S8971-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 8000 series LM3S8971-EQC50-A2T, 32-bit single-core MCU, 50MHz, 256KB Flash, 64K x 8 SRAM, CANbus/Ethernet/IrDA/SPI/UART, 38 I/O, 100-LQFP, -40°C to 105°C.","salesMarkdown":"## 50 MHz Cortex-M3 — what it buys you That puts it in the mid-range of the Stellaris 8000 series — enough for a real-time control loop with a TCP/IP stack and a CAN gateway running concurrently. The 64 KB SRAM is a single bank, so no bank-switching overhead for data buffers. ## Peripheral set — CAN, Ethernet, and the rest Connectivity includes CANbus, Ethernet MAC, IrDA, Microwire, QEI, SPI, SSI, and UART/USART. That combination targets industrial automation nodes that need both fieldbus (CAN) and plant-network (Ethernet) access. The 8-channel 10-bit ADC covers analog sensing like thermocouple or current-monitor inputs. Housed in a 100-LQFP (14x14 mm) with 38 usable I/O. ## Sourcing this part now Because the LM3S8971-EQC50-A2T is obsolete, standard distributor stock is depleted. We source it through independent channels — verified, traceable inventory from surplus and broker networks. If you need a pin-compatible drop-in for a board already in production, the Stellaris family includes other 100-LQFP Cortex-M3 parts with similar peripheral maps, but no official cross-reference is published; verify the exact pinout against your schematic before ordering an alternate.","metaTitle":"LM3S8971-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"Obsolete Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 64 KB SRAM, CAN/Ethernet, 100-LQFP.","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 8000","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":"CANbus, Ethernet, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","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":"LM3S8971","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"100-LQFP (14x14)","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/cdd7bbe714582b2ae380b4c04ebf9f5c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LM3S8971-EQC50-A2T be used in new designs?","answer":"Not recommended. As an Obsolete part, availability is limited to surplus and broker channels. For a new design, look at current-production Stellaris or TM4C Cortex-M4 parts from Texas Instruments in a similar 100-LQFP footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S8971-EQC50-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/LM3S8971-EQC50-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}}