{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1635-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1635-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1635-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1635-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Stellaris® ARM® Cortex®-M3S 1000 series 32-bit MCU, LM3S1635-IBZ50-A2T, 50 MHz core, 128 KB Flash, 32 KB SRAM, 56 I/O, 108-LFBGA, -40°C to 85°C, 2.25 V to 2.75 V supply.","salesMarkdown":"## Cortex-M3 controller at 50 MHz — what the 108-ball BGA brings to the board The LM3S1635-IBZ50-A2T: It is suited for embedded control applications — industrial automation, sensor interfaces, motor control, and human-machine interface panels — where a moderate-speed 32-bit core with a compact BGA footprint and a broad peripheral set is required. For a buyer evaluating this part for a BOM line, the NRND status is the key decision gate: if the design is already in production and the part is qualified, sourcing through independent distribution against an RFQ is the practical path — but for any new design, a pin-compatible or functionally equivalent current-production member of the Stellaris family should be evaluated instead. ## Memory and peripheral headroom — 128 KB Flash, 32 KB SRAM, 56 I/O The 128 KB program memory is adequate for control firmware with moderate code complexity — think PID loops, Modbus stacks, or basic HMI logic — while the 32 KB SRAM provides room for data buffers, communication stacks, and real-time variables. The 4-channel 10-bit ADC covers basic analog sensing, though for higher-resolution or multi-channel analog front ends an external ADC would be needed. ## 108-ball BGA footprint — layout and rework notes","metaTitle":"LM3S1635-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1635-IBZ50-A2T: Stellaris ARM Cortex-M3S 1000 series MCU at 50 MHz, 128 KB Flash, 32 KB SRAM, 56 I/O, 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":"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":"56","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":"LM3S1635","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":"$15.8886","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1635-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S1635-IBZ50-A2T?","answer":"For new designs, TI's current Stellaris or Tiva-C ARM Cortex-M4 portfolio should be evaluated for a pin-compatible or functionally equivalent alternative. A buyer should consult the latest TI documentation or contact their distributor to identify a current-production replacement that matches the 50 MHz core, 128 KB Flash, 108-BGA footprint, and peripheral set."},{"question":"Can I use LM3S1635-IBZ50-A2T in a new design?","answer":"TI does not recommend using this NRND part in new designs. If the design is already in production and the part is qualified, sourcing through independent distribution against an RFQ is possible, but for any new project a current-production member of the Stellaris or Tiva-C family should be selected instead."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1635-IBZ50-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/LM3S1635-IBZ50-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}}