{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1958-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1958-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1958-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1958-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1958-IBZ50-A2T, 32-bit MCU, 50 MHz, 256 KB Flash, 64 KB SRAM, 52 I/O, 108-BGA, -40°C to 85°C.","salesMarkdown":"The on-chip data converters (8-channel 10-bit ADC) and integrated peripherals — brown-out detect, POR, PWM, and watchdog timer — reduce external component count on a motor-drive or power-supply control board. The LM3S1958-IBZ50-A2T carries an NRND (Not Recommended for New Designs) status. It remains available for existing production BOMs through the independent distribution channel.","metaTitle":"LM3S1958-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash","metaDescription":"LM3S1958-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 64 KB SRAM, 52 I/O, industrial temp, 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":"64K 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":"LM3S1958","Program Memory Size":"256KB (256K 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":"$17.0617","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9c828580ab3372a02960288eaf7dc57f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1958-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1958-IBZ50-A2T obsolete or NRND?","answer":"Yes, the LM3S1958-IBZ50-A2T is designated NRND (Not Recommended for New Designs) by Texas Instruments. It is not fully discontinued, but TI recommends against using it in new projects. Existing production BOMs can still be filled through independent distribution."},{"question":"What is the best alternative or replacement for LM3S1958-IBZ50-A2T?","answer":"No official TI successor order code is listed for this part. For a current-production replacement, you would need to evaluate TI's TM4C12x or TM4C12x family devices, which are pin-compatible with many Stellaris footprints and operate at similar supply voltages. Check the package (108-BGA, 10x10 mm) and supply range (2.25 V to 2.75 V) when cross-referencing."},{"question":"What is LM3S1958-IBZ50-A2T's listed speed?","answer":"The LM3S1958-IBZ50-A2T is rated for a 50 MHz core clock on the ARM Cortex-M3 processor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1958-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/LM3S1958-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}}