{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1608-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1608-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1608-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1608-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1608-IBZ50-A2T, 50 MHz, 128KB Flash, 32KB RAM, 108-BGA, -40°C to 85°C.","salesMarkdown":"## What the NRND status means for your BOM line Texas Instruments lists the LM3S1608-IBZ50-A2T as NRND (Not Recommended for New Designs). This means the part is still available for existing production but is not intended for new design-ins — the manufacturer will not support new project starts with this order code. For a BOM that already carries this MCU, the NRND flag signals a finite procurement window. Stock is available through independent distribution; quantities and lead times are confirmed at RFQ. ## 50 MHz Cortex-M3 with 128 KB flash — throughput and memory headroom The ARM Cortex-M3 core runs at 50 MHz — this is the instruction throughput ceiling for the application. The 128 KB on-chip flash (128K x 8) and 32 KB SRAM (32K x 8) provide enough code and data space for mid-complexity control firmware, sensor fusion, or protocol-stack execution without external memory. Flash program memory type means field firmware updates are possible over the UART or SPI bootloader, but the 100K erase/write cycle endurance per sector should be budgeted into the update strategy. ## 108-ball BGA — board integration and supply rails Housed in a 108-LFBGA package with a 10x10 mm body (supplier device package 108-BGA 10x10), the part requires a multi-layer PCB for fan-out of the 0.50 mm pitch balls. The 52 available I/O route to peripherals and external interfaces. ## Peripheral set — connectivity and analog interface Connectivity options include I²C, IrDA, Microwire, SPI, SSI, and UART/USART — enough serial interfaces to handle sensor buses, display modules, and debug links without an external UART bridge. On-chip peripherals include brown-out detect/reset, POR, PWM, and a watchdog timer — these supervisory blocks reduce external component count for power sequencing and fault recovery. An 8-channel 10-bit ADC handles analog inputs like potentiometers, current shunts, or temperature sensors directly.","metaTitle":"LM3S1608-IBZ50-A2T TI ARM Cortex-M3 MCU, 50 MHz, 128KB Flash","metaDescription":"Texas Instruments LM3S1608-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 128KB Flash, 32KB RAM, 108-BGA. NRND — sourced to order against RFQ.","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":"52","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1608","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":"$22.6372","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/511450777513623b3ec616c6ad724877.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1608-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"How can I order the LM3S1608-IBZ50-A2T or check availability?","answer":"The LM3S1608-IBZ50-A2T is NRND but available to order through independent distribution. No stock-holding claim is made here; sourcing is per request."},{"question":"What is the closest pin-compatible alternative to the LM3S1608-IBZ50-A2T?","answer":"Within the Stellaris ARM Cortex-M3S 1000 series, other flash/RAM variants share the same core and package footprint, but pin compatibility must be verified against the respective datasheets — no cross-reference is confirmed here."},{"question":"What compliance documentation does Texas Instruments provide for the LM3S1608-IBZ50-A2T?","answer":"The part is RoHS-compliant as supplied on tape and reel. TI provides a datasheet, PCN notifications, and material declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1608-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/LM3S1608-IBZ50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:42:42.112Z","lastPublished":"2026-07-21T02:42:42.112Z","indexable":true}}