{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1G58-IQC80-A1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1G58-IQC80-A1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1G58-IQC80-A1","factsUrl":"https://icboms.com/api/mcp/products/LM3S1G58-IQC80-A1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3S1G58-IQC80-A1, Stellaris ARM Cortex-M3S 1000 series, 32-bit single-core MCU at 80MHz, 384KB FLASH, 64KB SRAM, 60 I/O, 100-LQFP tray.","salesMarkdown":"For existing designs, the only sourcing path is the independent market — broker or surplus inventory — where availability is intermittent and pricing reflects scarcity. Any BOM still specifying this MCU should be evaluated for a migration path, as long-term supply cannot be guaranteed. ## 80 MHz Cortex-M3 with 384 KB Flash — the performance tier The 80 MHz core delivers roughly 1.25 DMIPS/MHz, or about 100 DMIPS total, which is adequate for real-time control loops, motor commutation, and industrial protocol handling. The peripheral set includes a 16-channel 12-bit ADC, PWM, DMA, watchdog timer, brown-out detect, and POR. The 60 GPIOs in the 100-LQFP package give enough headroom for parallel displays, keypad matrices, and external memory interfaces. ## 100-LQFP footprint and supply rails The core supply is 1.235 V to 1.365 V — a narrow window that requires a regulated 1.3 V rail, typically from a separate LDO or a switcher. The I/O ring runs on a separate supply (not listed in this entry, but standard for the Stellaris family is 3.3 V).","metaTitle":"Texas Instruments LM3S1G58-IQC80-A1 Stellaris ARM Cortex-M3","metaDescription":"Texas Instruments LM3S1G58-IQC80-A1, 32-bit ARM Cortex-M3 MCU at 80 MHz, 384 KB Flash, 64 KB SRAM, 60 I/O, 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 1000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, 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":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1G58","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":"https://cdn.icboms.com/d3b5f7e0b53791b31a416526ae176f68.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM3S1G58-IQC80-A1 obsolete?","answer":"Yes, Texas Instruments lists the LM3S1G58-IQC80-A1 as Obsolete. No further production is planned. The only sourcing channel is the independent market (broker/surplus)."},{"question":"What is the replacement for LM3S1G58-IQC80-A1?","answer":"Texas Instruments has not published a direct pin-compatible replacement for this specific order code. The Stellaris family has been discontinued, and TI's current ARM Cortex-M portfolio (TM4C series) uses a different pinout and peripheral map. A migration requires a board re-spin and firmware port. For a like-for-like drop-in, check the independent market for remaining stock of this exact part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1G58-IQC80-A1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1G58-IQC80-A1 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}}