{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5P31-IBZ80-C1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5P31-IBZ80-C1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5P31-IBZ80-C1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IBZ80-C1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series microcontroller, LM3S5P31-IBZ80-C1T, 80 MHz, 64 KB flash, 24 KB RAM, 108-BGA, -40 to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with CAN and USB The LM3S5P31-IBZ80-C1T: On-chip memory is 64 KB of flash and 24 KB of SRAM, which fits a moderate application with a real-time OS but leaves little margin for a full Ethernet or graphics library. ## Peripheral set for industrial control Connectivity includes CAN, USB (device/host/OTG), UART, SPI, I2C, IrDA, and LIN — enough to bridge a CANopen fieldbus to a USB diagnostic port while logging data over UART. The 16-channel 10-bit ADC and quadrature encoder interface (QEI) make it a natural fit for motor-feedback or sensor-input applications. 67 general-purpose I/O pins are available in the 108-BGA package — enough to interface a parallel LCD or a bank of opto-coupled inputs without an external GPIO expander.","metaTitle":"TI LM3S5P31-IBZ80-C1T ARM Cortex-M3 MCU, 80 MHz, 64 KB Flash","metaDescription":"Texas Instruments LM3S5P31-IBZ80-C1T Stellaris ARM Cortex-M3 MCU, 80 MHz, 64 KB flash, 24 KB RAM, 108-BGA. Obsolete — sourced to order. Request a quote.","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-C1T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5P31-IBZ80-C1T obsolete?","answer":"Yes, Texas Instruments has marked this part as obsolete."},{"question":"Where can I buy LM3S5P31-IBZ80-C1T available via RFQ confirmation?","answer":"We source this obsolete MCU through independent distribution. Submit an RFQ for current availability and pricing — stock is lot-specific and confirmed at quote time."},{"question":"What is the pinout for LM3S5P31-IBZ80-C1T?","answer":"The pinout is defined in the Texas Instruments datasheet for the LM3S5P31 family. The 108-ball BGA ball map is documented there — no pinout detail is carried in this listing."},{"question":"What is the replacement for LM3S5P31-IBZ80-C1T?","answer":"A functional replacement would require a different MCU family and a board spin — no direct drop-in exists."},{"question":"Can LM3S5P31-IBZ80-C1T be used as a replacement for LM3S5P31-IBZ80-C1?","answer":"The LM3S5P31-IBZ80-C1T is the tape-and-reel variant of the base part LM3S5P31-IBZ80-C1. Electrically and functionally identical — the only difference is the packaging format (reel vs tray)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5P31-IBZ80-C1T","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-C1T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:55:21.970Z","lastPublished":"2026-07-21T02:55:21.970Z","indexable":true}}