{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1512-IBZ25-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1512-IBZ25-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1512-IBZ25-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1512-IBZ25-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series, 32-bit single-core MCU, LM3S1512-IBZ25-A2, 25MHz, 96KB Flash, 64KB RAM, 58 I/O, 108-BGA tray, -40°C to 85°C.","salesMarkdown":"## NRND — planning for the last-time-buy window Texas Instruments lists the LM3S1512-IBZ25-A2 as NRND (Not Recommended for New Designs). This means the part is still available for existing production but is not intended for new board spins. The official lifecycle status signals that a last-time-buy window may be open or approaching — designs already using this MCU should secure sufficient inventory for the remaining production run. The Stellaris family has been superseded by the Tiva C Series, but those devices use a different package and peripheral map — a board re-spin is required for migration. ## Core and memory — fit for control-loop firmware The ARM Cortex-M3 core runs at 25 MHz, delivering enough throughput for sensor polling, PID loops, and fieldbus protocol stacks without external memory wait-states. The 96 KB on-chip Flash holds the application code and bootloader; the 64 KB SRAM leaves headroom for data buffers and stack in a typical industrial controller. The 58 GPIO pins map directly to discrete I/O for limit switches, relays, and status LEDs. Two 10-bit ADC channels handle analog inputs like potentiometers or 4-20 mA current loops with external signal conditioning. On-chip connectivity includes I²C, SPI, SSI, UART/USART, IrDA, and Microwire — enough to interface with external EEPROM, temperature sensors, motor encoders, and serial displays. The QEI (Quadrature Encoder Interface) peripheral directly decodes incremental encoder signals for closed-loop motor position feedback without bit-banging GPIO. The brown-out detect and POR circuits ensure the core resets cleanly on power-up or supply dips. ## Package and thermal envelope The 108-ball LFBGA package measures 10x10 mm with a 0.80 mm ball pitch — a standard four-layer PCB with via-in-pad can fan out all signals. The 2.5 V core supply keeps dynamic power lower than a 3.3 V part, which matters in thermally constrained enclosures.","metaTitle":"TI LM3S1512-IBZ25-A2 ARM Cortex-M3 MCU, 25MHz, 96KB Flash","metaDescription":"Texas Instruments LM3S1512-IBZ25-A2 Stellaris ARM Cortex-M3 MCU, 25MHz, 96KB Flash, 64KB RAM, 58 I/O, 108-BGA. 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":"25MHz","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":"58","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"A/D 2x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1512","Program Memory Size":"96KB (96K 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":"$18.7541","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ff955284a6be074dc752bb03d5753397.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1512-IBZ25-A2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the LM3S1512-IBZ25-A2?","answer":"TI does not list a direct pin-compatible successor for this part. The Stellaris family has been replaced by the Tiva C Series, but those MCUs use different packages and peripheral maps — a board re-spin is required for migration. No drop-in replacement exists."},{"question":"What is the LM3S1512-IBZ25-A2's core speed and memory?","answer":"The ARM Cortex-M3 core runs at 25 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1512-IBZ25-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/LM3S1512-IBZ25-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:41:52.498Z","lastPublished":"2026-07-21T02:41:52.498Z","indexable":true}}