{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5651-IBZ80-C5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5651-IBZ80-C5","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5651-IBZ80-C5","factsUrl":"https://icboms.com/api/mcp/products/LM3S5651-IBZ80-C5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series 32-bit MCU, LM3S5651-IBZ80-C5, 80 MHz core, 128 KB Flash, 32 KB SRAM, 67 I/O, USB OTG, CAN, I²C, SPI, UART, 16-ch 10-bit ADC, -40°C to 85°C, 108-BGA.","salesMarkdown":"## 80 MHz Cortex-M3 with USB OTG and CAN — field-service note The LM3S5651-IBZ80-C5: Texas Instruments Stellaris ARM Cortex-M3S 5000 series 32-bit microcontroller. Peripherals include USB OTG, CANbus, I2C, SPI, UART, and a 16-channel 10-bit ADC. 108-ball BGA (10x10 mm), -40°C to 85°C. At 80 MHz, the Cortex-M3 executes single-cycle multiply and hardware divide, so a PID loop or Modbus packet handler can run without wait-state stalls from Flash prefetch. The 32 KB SRAM leaves room for a double-buffered USB frame or a CAN message queue alongside the stack. ## Connectivity mix: USB OTG plus CAN USB OTG means the MCU can act as either a device (sensor data logger) or a host (flash drive for firmware update) on the same port. CANbus connects directly to industrial actuator networks without an external transceiver — just a CAN PHY chip. The QEI and PWM peripherals let it drive a brushed DC motor or read an incremental encoder without bit-banging GPIO. Texas Instruments has marked the LM3S5651-IBZ80-C5 as Obsolete. No last-time-buy window remains open through the factory. No direct pin-compatible second source is recorded in TI's official cross-reference for this Stellaris part.","metaTitle":"LM3S5651-IBZ80-C5 Stellaris Cortex-M3 MCU, 80 MHz, 128 KB Flash","metaDescription":"Obsolete LM3S5651-IBZ80-C5 32-bit ARM Cortex-M3 MCU. 80 MHz, 128 KB Flash, 32 KB SRAM, USB OTG, CAN, 108-BGA. Sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"80MHz","Series":"Stellaris® ARM® Cortex®-M3S 5000","Package":"Tray","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5651","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)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9315fa200c803917e7b307e71a010347.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5651-IBZ80-C5/alternatives.json"},"ai":{"faq":[{"question":"What is LM3S5651-IBZ80-C5's core speed?","answer":"The ARM Cortex-M3 core runs at 80 MHz, which supports single-cycle multiply and hardware divide for real-time control loops."},{"question":"What is the closest pin-compatible alternative?","answer":"No official TI cross-reference or pin-compatible second source is recorded for this exact Stellaris order code. For a drop-in replacement, verify the footprint and peripheral set against another Stellaris LM3S5xxx device in the same 108-BGA package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5651-IBZ80-C5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5651-IBZ80-C5 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}}