{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2965-IQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2965-IQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2965-IQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2965-IQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series, LM3S2965-IQC50-A2, 32-Bit Single-Core MCU, 50MHz, 256KB Flash, 64K x 8 RAM, CAN, I²C, SPI, UART, 56 I/O, 100-LQFP, -40°C~85°C.","salesMarkdown":"## What this Stellaris MCU brings to a control board The Texas Instruments LM3S2965-IQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® family, clocked at 50 MHz with 256 KB of Flash and 64 KB of RAM. ## 50 MHz Cortex-M3 — enough for most control loops The 50 MHz core handles a typical PID loop with CAN message handling without saturating the CPU. ## 256 KB Flash + 64 KB RAM — sizing the firmware 256 KB of program Flash and 64 KB of SRAM fit a moderate-complexity firmware stack: a CANopen or Modbus RTU slave, a simple RTOS kernel, and a few hundred lines of application code. Rated for -40°C to 85°C ambient, with a supply range of 2.25 V to 2.75 V. Remaining supply is finite. ## Peripherals and on-chip resources On-chip peripherals include brown-out detection, power-on reset, PWM generators, and a watchdog timer — enough for a standalone controller without external supervisor ICs. The connectivity set covers CAN, I²C, IrDA, Microwire, QEI (for quadrature encoder inputs), SPI, SSI, and UART/USART, giving flexibility for motor feedback, sensor buses, and serial comms to a host controller.","metaTitle":"LM3S2965-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash","metaDescription":"LM3S2965-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 64 KB RAM, CAN/I2C/SPI/UART, -40 to 85°C, 100-LQFP. NRND — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2965","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$45.6600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce414822a550b8e6d450a674e6735501.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2965-IQC50-A2/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S2965-IQC50-A2 obsolete?","answer":"Yes, this part is NRND (Not Recommended for New Designs) and carries an EOL-hot lifecycle status. It is not in active promotion by TI, and remaining stock is finite. Source it through independent distribution against an RFQ for existing BOM lines."},{"question":"What is the replacement for LM3S2965-IQC50-A2?","answer":"TI has not published a direct pin-compatible replacement for this exact order code. The Stellaris line has been superseded by the Tiva™ C Series, but a board-level redesign is typically needed to accommodate different package and peripheral mapping."},{"question":"What is the pinout of LM3S2965-IQC50-A2?","answer":"The device comes in a 100-LQFP package (14x14 mm body) with 56 general-purpose I/O pins. The full pinout is documented in the TI datasheet for the LM3S2965 base product number."},{"question":"LM3S2965-IQC50-A2 vs LM3S2965-IQC50-A1 — what's different?","answer":"The -A2 suffix typically indicates a silicon revision or manufacturing change. Electrical specifications (50 MHz core, 256 KB Flash, 64 KB RAM, same peripheral set) are identical between the two. The -A2 is the later revision; both are NRND."},{"question":"What is the lead time for LM3S2965-IQC50-A2?","answer":"Lead time is confirmed at quote time against an RFQ. As an NRND part, availability is limited and varies by lot — submit an RFQ for current lead time on available stock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2965-IQC50-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/LM3S2965-IQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}