{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2651-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2651-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2651-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S2651-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series MCU, LM3S2651-IBZ50-A2T, 32-bit single-core, 50MHz, 128KB Flash, 32KB RAM, 108-BGA, tape & reel.","salesMarkdown":"## 50 MHz Cortex-M3 with 128 KB Flash The LM3S2651-IBZ50-A2T: The 128 KB on-chip Flash and 32 KB SRAM provide enough headroom for a moderate-complexity firmware stack — think a CANopen node with a sensor interface and a local control loop, where the 32 KB RAM leaves room for a real-time OS heap and communication buffers. ## Connectivity and peripheral set The MCU integrates CANbus, I²C, SPI, SSI, UART/USART, and IrDA — covering the common industrial fieldbus and sensor interfaces. The 53 GPIOs can drive a parallel LCD or multiple chip selects without external port expanders. A 4-channel 10-bit ADC handles basic analog inputs like potentiometer feedback or temperature sensor conditioning. The internal oscillator eliminates the external crystal for many applications, though the accuracy may not suit precision timing. Housed in a 108-ball LFBGA (10x10 mm), the LM3S2651-IBZ50-A2T requires a multi-layer PCB for fan-out — the 0.80 mm ball pitch is manageable with standard 4-layer stack-ups. Tape-and-reel packaging supports automated assembly.","metaTitle":"LM3S2651-IBZ50-A2T Texas Instruments MCU, 50MHz, 128KB Flash","metaDescription":"Texas Instruments LM3S2651-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB Flash, 32KB RAM, NRND — sourced to order. Request a quote.","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":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"53","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2651","Program Memory Size":"128KB (128K 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":"$27.1908","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2651-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S2651-IBZ50-A2T and how do I get a price?","answer":"The part is sourced to order against an RFQ through independent distribution channels — availability and current pricing are confirmed at quote time. The 108-LFBGA package limits which brokers carry stock, so a direct RFQ is the fastest path to a firm lead time."},{"question":"What is the closest pin-compatible alternative to LM3S2651-IBZ50-A2T?","answer":"TI migrated the Stellaris family to the Tiva C Series (ARM Cortex-M4F), but pin compatibility is not direct — the 108-LFBGA pinout and peripheral mapping differ between the two series. A board respin is required; consult the TI Tiva product line for the closest functional equivalent in your target package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2651-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/LM3S2651-IBZ50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:51:19.453Z","lastPublished":"2026-07-21T02:51:19.453Z","indexable":true}}