{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1P51-IBZ80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1P51-IBZ80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1P51-IBZ80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1P51-IBZ80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series LM3S1P51-IBZ80-C5T, 32-bit single-core MCU, 80MHz, 64KB Flash, 24KB RAM, 67 I/O, 108-LFBGA, 1.08V–3.6V supply, -40°C–85°C.","salesMarkdown":"At 80 MHz the Cortex-M3 delivers single-cycle multiply and hardware divide, with a 3-stage pipeline that keeps interrupt latency deterministic. For a sensor-fusion or motor-control loop running from internal Flash, that 80 MHz clock gives you roughly 80 MIPS — enough headroom for a PID update every 50 µs with cycles left for communications. The 24 KB RAM is tight; budget it carefully if you are buffering multiple ADC channels or running a real-time OS. On-chip peripherals include a 16-channel 10-bit ADC, PWM timers, a quadrature encoder interface (QEI), I²S audio, DMA, and watchdog. ## Obsolete — sourcing plan required This part is officially obsolete. TI no longer manufactures the Stellaris LM3S1P51-IBZ80-C5T. There is no direct pin-compatible successor listed in the product documentation. ## 108-ball BGA — layout and rework notes The 108-LFBGA package (10x10 mm body) uses a 0.8 mm ball pitch. That is fine for a standard 4-layer PCB with via-in-pad if you tent the vias. A hot-air rework station with a bottom preheater set to 150°C handles the removal, but the 10x10 mm body heats up fast; keep the top nozzle temperature under 260°C on the profile.","metaTitle":"TI LM3S1P51-IBZ80-C5T ARM Cortex-M3 MCU, 80MHz, 64KB Flash","metaDescription":"Texas Instruments Stellaris LM3S1P51-IBZ80-C5T 32-bit ARM Cortex-M3 MCU at 80MHz with 64KB Flash, 24KB RAM, 67 I/O, 108-LFBGA.","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 1000","Package":"Tape & Reel (TR)","RAM Size":"24K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","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":"LM3S1P51","Program Memory Size":"64KB (64K 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 ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4b537d7b08f213ef30fdcb0c13b6e56c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1P51-IBZ80-C5T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S1P51-IBZ80-C5T?","answer":"TI has not published a direct pin-compatible replacement for this Stellaris part. For new designs, evaluate TI's current ARM Cortex-M4 or M4F MCUs in a similar BGA package — expect a PCB layout change due to ball-map differences."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1P51-IBZ80-C5T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1P51-IBZ80-C5T 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}}