{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1637-IBZ50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1637-IBZ50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1637-IBZ50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1637-IBZ50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series, LM3S1637-IBZ50-A2, 32-bit single-core MCU, 50MHz, 128KB flash, 32K x 8 RAM, 43 I/O, -40°C to 85°C, 108-LFBGA tray","salesMarkdown":"The LM3S1637-IBZ50-A2: It carries 128KB of on-chip flash and 32K x 8 SRAM, giving firmware a comfortable footprint for control-loop and communications stacks without external memory. The 43 general-purpose I/O lines and integrated peripherals—including I2C, SPI, UART, PWM, and a 4-channel 10-bit ADC—target motor-drive feedback, sensor aggregation, and industrial panel control. ## NRND — plan the BOM around it That means existing production lines can still source it, but new projects should evaluate a current-generation Stellaris or Tiva-C series part with a compatible peripheral set and BGA footprint. The 108-LFBGA (10x10 mm) package is a known footprint; the supply voltage range of 2.25V to 2.75V should be confirmed against the existing rail. The 108-ball LFBGA (10x10 mm) package requires a multi-layer PCB for fan-out—expect at least four layers to route the peripheral signals and supply balls.","metaTitle":"LM3S1637-IBZ50-A2 – Texas Instruments Stellaris ARM","metaDescription":"LM3S1637-IBZ50-A2 Texas Instruments Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB flash, 32Kx8 RAM, 43 I/O, industrial temp -40°C to 85°C, 108-BGA.","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":"Tray","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":"43","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1637","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.1565","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99ee81b12912cebc4bb780a82de7e81e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1637-IBZ50-A2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1637-IBZ50-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1637-IBZ50-A2 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}}