{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2U93-IQC80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2U93-IQC80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2U93-IQC80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S2U93-IQC80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series MCU, LM3S2U93-IQC80-A2T, 80 MHz, 384 KB flash, 96 KB RAM, 100-LQFP, -40 to +85 °C.","salesMarkdown":"## 80 MHz Cortex-M3 with 384 KB flash — the real-time control ceiling The LM3S2U93-IQC80-A2T: The 32-bit core at this speed delivers deterministic interrupt response for motor-control loops, sensor fusion, and industrial protocol stacks where the firmware must service a fieldbus cycle without jitter. ## Industrial temperature grade and peripheral set The internal oscillator eliminates an external crystal for the core clock, though the I²S and CAN peripherals may still need a precision reference for bit-rate accuracy. On-chip peripherals include DMA for memory-to-peripheral transfers without CPU load, a PWM module for motor drive or LED dimming, a watchdog timer for fail-safe reset, and brown-out detection that holds the core in reset until the supply rail is stable. The 16-channel 10-bit ADC samples analog inputs from sensors or potentiometers — enough resolution for threshold detection but not for precision measurement without external reference. ## Connectivity mix for industrial and embedded buses The device integrates CAN 2.0B for industrial fieldbus networks, multiple UART/USART channels for RS-232 or RS-485 links, I²C and SPI for local sensor and memory expansion, and an external bus interface (EBI/EMI) for parallel SRAM, NOR flash, or an FPGA register map. The QEI peripheral decodes quadrature encoder signals directly — useful for motor position feedback without an external decoder IC. Texas Instruments has marked the LM3S2U93-IQC80-A2T as obsolete. No pin-compatible direct replacement exists in the current TI portfolio — a board redesign or software migration to a newer Cortex-M4 or M7 part would be required for new production.","metaTitle":"LM3S2U93-IQC80-A2T Texas Instruments ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S2U93-IQC80-A2T Stellaris ARM Cortex-M3 MCU, 80 MHz, 384 KB flash, 96 KB RAM, 100-LQFP.","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 2000","Package":"Tape & Reel (TR)","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2U93","Program Memory Size":"384KB (384K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.235V ~ 1.365V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S2U93-IQC80-A2T?","answer":"No official pin-compatible successor is recorded from Texas Instruments. The Stellaris family has been superseded by the Tiva C Series (TM4C) parts, which use a different pinout and require a board layout change. For existing designs, the only supply path is the surplus channel for this exact order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2U93-IQC80-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/LM3S2U93-IQC80-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:52:48.810Z","lastPublished":"2026-07-21T02:52:48.810Z","indexable":true}}