{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S316-IQN25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S316-IQN25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S316-IQN25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S316-IQN25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series LM3S316-IQN25-C2T, 32-Bit Single-Core MCU, 25MHz, 16KB Flash, 4K x 8 SRAM, 32 I/O, I²C/SPI/UART, A/D 4x10b, -40°C~85°C, 48-LQFP.","salesMarkdown":"## What this Cortex-M3 brings to a 48-pin LQFP With 16 KB of Flash (16K x 8), the firmware budget is tight: a bare-metal control loop with a UART command parser fits, but a full RTOS with TCP/IP stack will push the limit. The 4 KB SRAM (4K x 8) handles a couple of moderate-size buffers for I²C or SPI transactions, but double-buffering a 1 KB ADC capture eats half the RAM. If your application needs over-the-air update staging or a large lookup table, step up to the higher-density siblings in the Stellaris family. The supply range is 3.0 V to 3.6 V, so a regulated 3.3 V rail is the natural fit; don't plan on running it from a wide-input LDO or a battery that sags below 3.0 V. ## Peripherals and connectivity for a control-oriented MCU The peripheral set covers the essentials: brown-out detect and POR for reliable power-up sequencing, a PWM module for motor or LED drive, and a watchdog timer for system supervision. Serial connectivity includes I²C, SPI (via SSI), and UART/USART — enough to talk to an external ADC, an EEPROM, or a radio module. The 4-channel 10-bit ADC is there for basic analog sensing (potentiometer, thermistor, current shunt), though the 10-bit resolution limits precision measurement. The base product number is LM3S316, which covers the whole family of speed and temperature variants.","metaTitle":"LM3S316-IQN25-C2T Stellaris ARM Cortex-M3 MCU, 25MHz","metaDescription":"LM3S316-IQN25-C2T 32-bit ARM Cortex-M3 MCU from the Stellaris 300 series. 25MHz core, 16KB Flash, 4KB SRAM, 32 I/O, industrial -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"25MHz","Series":"Stellaris® ARM® Cortex®-M3S 300","Package":"Tape & Reel (TR)","RAM Size":"4K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"32","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S316","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/390a0dd8f415a72ded60f3709e1ec55a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S316-IQN25-C2T/alternatives.json"},"ai":{"faq":[{"question":"What is the flash memory size of LM3S316-IQN25-C2T?","answer":"The LM3S316-IQN25-C2T has 16 KB of Flash program memory, organized as 16K x 8 bits."},{"question":"Is LM3S316-IQN25-C2T RoHS compliant?","answer":"The part is listed as RoHS compliant per the standard TI Stellaris series environmental compliance; the suffix 'C2T' in the order code indicates the lead-free, RoHS-compliant finish."},{"question":"Can LM3S316 replace LM3S317?","answer":"The LM3S317 is a pin-compatible sibling in the same Stellaris 300 family with larger Flash and SRAM; the LM3S316 is a lower-density variant. Board-level replacement is possible if the firmware fits in 16 KB Flash and the application tolerates the smaller RAM, but verify the peripheral set matches your firmware drivers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S316-IQN25-C2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S316-IQN25-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}