{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S8738-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S8738-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S8738-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S8738-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris LM3S8738-IQC50-A2T, ARM Cortex-M3 50 MHz, 128 KB Flash, 64 KB RAM, 38 I/O, CANbus + Ethernet + I²C + SPI + UART, 100-LQFP, -40 to 85°C, 2.25–2.75 V.","salesMarkdown":"The Texas Instruments LM3S8738-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® ARM® Cortex®-M3S 8000 series, clocked at 50 MHz with 128 KB of Flash program memory and 64 KB of SRAM. The part is rated for -40 to 85°C industrial temperature environments and operates from a 2.25 V to 2.75 V supply, packaged in a 100-LQFP (14x14 mm) footprint. ## 50 MHz Cortex-M3 — enough for a protocol bridge It is not a high-throughput DSP or a multi-protocol router, but it handles a single CANopen or Modbus TCP stack plus local sensor polling without hitting the bus. The 38 GPIOs, 8-channel 10-bit ADC, and internal oscillator reduce external BOM count for a compact control board. Texas Instruments has marked the LM3S8738-IQC50-A2T as obsolete. No official successor is listed in the Stellaris family. ## What the industrial temperature rating means for deployment","metaTitle":"TI LM3S8738-IQC50-A2T ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash","metaDescription":"Texas Instruments Stellaris LM3S8738-IQC50-A2T ARM Cortex-M3 MCU at 50 MHz, 128 KB Flash, 64 KB RAM, CAN + Ethernet, 100-LQFP. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","title":"LM3S8738-IQC50-A2T","Series":"Stellaris® ARM® Cortex®-M3S 8000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S8738","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S8738-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S8738-IQC50-A2T?","answer":"No official pin-compatible successor is listed by Texas Instruments for this specific Stellaris order code. The Tiva-C and MSP432 families use different pinouts and supply voltages. A BOM redesign is required to migrate to a current-production MCU."},{"question":"What is LM3S8738-IQC50-A2T's listed speed?","answer":"The core runs at 50 MHz, which is sufficient for single-protocol CAN or Ethernet gateway applications and local sensor processing."},{"question":"What compliance documentation does this part carry?","answer":"The listing confirms the part is supplied in Tape & Reel packaging. RoHS, REACH, and other compliance documentation should be verified against the manufacturer's original datasheet and the specific date-code batch at time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S8738-IQC50-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/LM3S8738-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}