{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5P31-IBZ80-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5P31-IBZ80-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5P31-IBZ80-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IBZ80-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series, LM3S5P31-IBZ80-C3T, 32-bit single-core MCU, 80MHz, 64KB Flash, 24KB RAM, 1.08-1.32V supply, 67 I/O, 108-LFBGA, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## 80 MHz Cortex-M3 – processing headroom for control and comms At 80 MHz, the ARM Cortex-M3 core delivers enough throughput to handle a real-time control loop (e.g., a motor FOC or a CAN gateway) alongside protocol stacks for USB and multiple UART/SPI interfaces. With 64 KB of program Flash and 24 KB of SRAM, this MCU fits firmware images that include a RTOS kernel, a USB stack, and a CANopen or Modbus application layer, but leaves little room for large lookup tables or over-the-air update staging. The 24 KB RAM is shared between stack, heap, and DMA buffers – a design that streams data over USB or CAN will need to budget the buffer pool carefully. ## Peripheral set – CAN, USB, and industrial serial interfaces This makes the part a natural fit for an industrial sensor hub, a motor encoder interface, or a CAN-to-USB gateway. The 16-channel 10-bit ADC (A/D 16x10b) provides enough analog inputs for monitoring multiple sensor signals without an external mux. ## Temperature grade and package – industrial deployment in a BGA The 1.08 V to 1.32 V core supply means a dedicated low-voltage regulator is needed; the I/O bank runs from a separate 3.3 V rail, so level translation is not required for 3.3 V peripherals. ## Sourcing reality for an obsolete MCU Availability and pricing are confirmed only at the time of an RFQ – there is no fixed stock or lead-time number. Buyers should expect to quote against a specific quantity and target date, and to verify date codes and handling history upon receipt.","metaTitle":"TI LM3S5P31-IBZ80-C3T Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments LM3S5P31-IBZ80-C3T Stellaris ARM Cortex-M3 MCU, 80MHz, 64KB Flash, 24KB RAM, -40°C to 85°C, 108-BGA.","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":"Tape & Reel (TR)","RAM Size":"24K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB","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":"LM3S5P31","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 ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6eb0e448a2435bd671cb24636bc93dca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IBZ80-C3T/alternatives.json"},"ai":{"faq":[{"question":"Can I use LM3S5P31-IBZ80-C3T in a new design?","answer":"No. Because the part is obsolete, it is not recommended for new designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5P31-IBZ80-C3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5P31-IBZ80-C3T 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}}