{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1850-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1850-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1850-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1850-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1850-IQC50-A2T, 32-Bit Single-Core MCU, 50MHz, 256KB Flash, 32K x 8 RAM, 56 I/O, 2.25V~2.75V, -40°C~85°C, 100-LQFP.","salesMarkdown":"## What this Stellaris MCU brings to a control board The LM3S1850-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® series, clocked at 50 MHz with 256 KB of Flash and 32 KB of RAM. ## 50 MHz core — enough for real-time loops, not for heavy DSP The 50 MHz Cortex-M3 handles PID loops, Modbus packet parsing, and display updates without breaking a sweat. If your algorithm needs floating-point or sustained multiply-accumulate, you'd look at a Cortex-M4F part instead — this core is about control logic and communication, not signal processing. ## NRND — plan your BOM accordingly For existing production, we source it through independent distribution.","metaTitle":"LM3S1850-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 100-LQFP","metaDescription":"LM3S1850-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 32 KB RAM, 56 I/O, -40°C to 85°C, 100-LQFP. NRND status; sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Not For New Designs","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1850","Program Memory Size":"256KB (256K 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":"$14.4358","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/38b03106a267df1019dd902dd40d5344.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1850-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1850-IQC50-A2T obsolete or recommended for new designs?","answer":"It is NRND (Not Recommended for New Designs) per Texas Instruments. Existing production can still be sourced through independent distribution; we quote it against an RFQ."},{"question":"What is a direct replacement for LM3S1850-IQC50-A2T?","answer":"No official direct replacement is listed. For a pin-compatible alternative within the Stellaris LM3S family, check active siblings in the same 100-LQFP footprint — the peripheral set and pinout are shared across the series."},{"question":"Does LM3S1850-IQC50-A2T require an external oscillator?","answer":"No — it has an internal oscillator, so you can omit the external crystal for many applications. Use the internal clock when timing accuracy within a few percent is acceptable."},{"question":"How many I/O pins does LM3S1850-IQC50-A2T have?","answer":"56 I/O pins, available on the 100-LQFP package."},{"question":"Where can I buy LM3S1850-IQC50-A2T and how do I get a price?","answer":"We source this NRND part to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is LM3S1850-IQC50-A2T's listed speed?","answer":"50 MHz, from the ARM Cortex-M3 core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1850-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/LM3S1850-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}