{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1601-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1601-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1601-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1601-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series microcontroller, LM3S1601-EQC50-A2T, 32-bit single-core, 50MHz, 128KB Flash, 32K x 8 RAM, 100-LQFP, -40°C to 105°C.","salesMarkdown":"## Core architecture and memory for embedded control The LM3S1601-EQC50-A2T: This core delivers the deterministic interrupt response and Thumb-2 instruction set density that suits real-time control loops in industrial and medical equipment. On-chip memory comprises 128 KB of Flash for program storage and 32K x 8 of SRAM for stack, heap, and data buffers. The Flash-to-RAM ratio supports moderate-complexity firmware with a real-time operating system or a bare-metal scheduler. Connectivity options include I²C, SPI, SSI, UART/USART, IrDA, and Microwire, covering the common serial buses for temperature sensors, ADCs, displays, and wireless modules. The 60 general-purpose I/O lines provide ample headroom for parallel interfaces and discrete control signals. On-chip peripherals — brown-out detect/reset, POR, PWM, and watchdog timer — reduce external component count. The internal oscillator further simplifies the BOM by eliminating an external crystal for many applications. ## Package, temperature grade, and supply rails The narrow tolerance means the rail must be within ±0.25 V of the nominal 2.5 V — a standard 2.5 V regulator with 1% accuracy meets this margin. ## Lifecycle reality and sourcing path Texas Instruments has classified the LM3S1601-EQC50-A2T as Obsolete. No official successor or pin-compatible replacement is listed on the manufacturer's records.","metaTitle":"LM3S1601-EQC50-A2T Texas Instruments ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1601-EQC50-A2T ARM Cortex-M3 MCU, 50MHz, 128KB Flash, 32Kx8 RAM, 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":{"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, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1601","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0daa3ba29b286b66a18a2cc1497c3f74.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the LM3S1601-EQC50-A2T and how is it quoted?","answer":"The LM3S1601-EQC50-A2T is sourced through independent distribution channels. Submit an RFQ for a firm quote with lot traceability and date code options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1601-EQC50-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/LM3S1601-EQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:42:21.072Z","lastPublished":"2026-07-21T02:42:21.072Z","indexable":true}}