{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1J16-IQR50-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1J16-IQR50-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1J16-IQR50-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1J16-IQR50-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1J16-IQR50-C5T, 32-Bit Single-Core MCU, 50MHz, 128KB Flash, 20K x 8 RAM, 33 I/O, 8x10b ADC, I²C/SPI/UART/LIN, -40°C~85°C, 64-LQFP.","salesMarkdown":"No last-time-buy window or successor order code is recorded in the lifecycle data. If a form-fit-function replacement is needed, the Stellaris family includes pin-compatible siblings with varying memory and peripheral sets — the LM3S1J15 is one such candidate, though its exact feature differences should be verified against the target application's requirements. The 50 MHz ARM Cortex-M3 core delivers enough throughput for real-time control loops, Modbus or CAN gateway bridging, and sensor fusion algorithms without needing an external coprocessor. The 128 KB Flash can hold a FreeRTOS or TI-RTOS kernel plus application code for a medium-complexity product; the 20 KB SRAM supports several protocol buffers and a modest call stack. Designs that need more than 20 KB of RAM for data logging or display frame buffers will hit a ceiling — that is the constraint to check first when evaluating fit against a legacy BOM. ## Peripheral set and package fit With I²C, SPI, UART, and LIN on the same die, this MCU can bridge multiple serial buses without external level shifters or protocol converters. The 8-channel 10-bit ADC covers analog inputs like potentiometers, thermistors, or current-sense resistors. Brown-out detect and POR eliminate the need for a dedicated supervisor IC in many designs. The 64-LQFP package with 0.5 mm pitch requires a standard PCB process — no micro-vias or blind vias needed. The 33 I/O lines are enough for a keypad matrix, a small character LCD, and a handful of discrete sensors and actuators.","metaTitle":"LM3S1J16-IQR50-C5T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1J16-IQR50-C5T is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, 50 MHz core, 128 KB Flash, 20 KB SRAM, 33 I/O, industrial temp -40°C to 85°C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tape & Reel (TR)","RAM Size":"20K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1J16","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)":"1.08V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4eb1f2120c019042b840bb15071c7cfd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1J16-IQR50-C5T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement or equivalent for LM3S1J16-IQR50-C5T?","answer":"The Stellaris family includes pin-compatible siblings such as the LM3S1J15, which may serve as a form-fit-function alternative depending on memory and peripheral requirements. Verify the specific feature differences — particularly Flash size, RAM, and ADC channels — against your application before substituting."},{"question":"Where can I buy LM3S1J16-IQR50-C5T?","answer":"Submit an RFQ to confirm current availability and pricing; the part is quoted to order per your quantity and delivery requirements."},{"question":"What is the speed of LM3S1J16-IQR50-C5T?","answer":"The core runs at 50 MHz, which is the maximum clock rate for the ARM Cortex-M3 in this device. This speed supports real-time control loops, protocol bridging, and sensor processing without external clock multiplication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1J16-IQR50-C5T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1J16-IQR50-C5T 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}}