{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5652-IQR50-A0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5652-IQR50-A0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5652-IQR50-A0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5652-IQR50-A0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 32-bit MCU, LM3S5652-IQR50-A0T, 50 MHz, 128 KB flash, 32 KB RAM, 33 GPIO, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## Stellaris Cortex-M3 core at 50 MHz — control-loop ceiling The LM3S5652-IQR50-A0T: That 50 MHz sets the throughput ceiling for the main control loop or protocol stack — enough for motor-control feedback, CAN gateway bridging, or USB OTG host negotiation without a dedicated co-processor. On-chip memory is 128 KB of flash and 32 KB of SRAM (organized as 32K x 8). The flash holds the application binary and bootloader; the 32 KB SRAM leaves room for a moderate RTOS heap and stack — budget the HAL and middleware footprint before committing the BOM. Supply voltage is 2.25 V to 2.75 V, which means a dedicated 2.5 V rail — the MCU does not run from the common 3.3 V supply. Plan a separate LDO or a dual-output regulator if the board already carries 3.3 V. ## Industrial temperature grade and peripheral set Connectivity covers CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART, and USB OTG — a broad set for industrial fieldbus bridging and peripheral expansion. The six-channel 10-bit ADC handles basic analog sensing (potentiometers, thermistors, current shunts) but is not intended for high-resolution acquisition. On-chip peripherals include brown-out detect, POR, DMA, PWM, and watchdog — these reduce external supervisor and timer IC count on the board. The internal oscillator means the MCU can start without an external crystal, though the accuracy is limited to the internal trim. The 64-LQFP package (10x10 mm body) with 33 GPIOs — most pins are multipurpose; the peripheral mux must be checked against the required function set before the PCB layout is finalized. ## NRND — sourcing posture for existing BOM lines Texas Instruments lists the LM3S5652-IQR50-A0T as NRND (Not Recommended for New Designs). This means TI will continue to support existing designs but does not target this part for new projects. For a BOM that already carries this MCU, sourcing is through existing inventory or independent distribution channels.","metaTitle":"LM3S5652-IQR50-A0T Texas Instruments ARM Cortex-M3 MCU","metaDescription":"LM3S5652-IQR50-A0T Texas Instruments Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB flash, 32 KB RAM, 64-LQFP. 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 5000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 6x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5652","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.5870","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5652-IQR50-A0T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S5652-IQR50-A0T?","answer":"The Stellaris 5000 series includes several Cortex-M3 variants in the 64-LQFP package, but pin compatibility depends on the specific peripheral set and supply voltage — verify against the target BOM before substituting."},{"question":"What compliance documentation does Texas Instruments provide for LM3S5652-IQR50-A0T?","answer":"The part ships on Tape & Reel. Standard TI compliance documentation (RoHS, REACH) is available through the manufacturer's documentation portal. No additional military or automotive qualification is listed for this commercial-industrial grade MCU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5652-IQR50-A0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5652-IQR50-A0T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:54:25.358Z","lastPublished":"2026-07-21T02:54:25.358Z","indexable":true}}