{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S310-EQN25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S310-EQN25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S310-EQN25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S310-EQN25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 300 series 32-bit MCU, LM3S310-EQN25-C2T, 25 MHz, 16 KB Flash, 4 KB RAM, 36 I/O, 48-LQFP, -40 to 105°C, tape and reel.","salesMarkdown":"## Cortex-M3 at 25 MHz — what the speed means for the BOM line The LM3S310-EQN25-C2T: That clock rate sets the ceiling for control-loop bandwidth and protocol throughput — a PID loop sampling at 10 kHz with a 100 µs compute budget leaves margin for the stack and UART handling. The flash holds a modest firmware image — a sensor-node bootloader plus application code fits; a full TCP/IP stack with a web server does not. The 4 KB RAM (4K x 8) supports a few hundred bytes of heap and stack, enough for a Modbus RTU slave or a simple state machine. ## Industrial temperature grade and on-chip supervision Built-in brown-out detect, power-on reset, and watchdog timer reduce the external supervisor IC count. For a cost-sensitive two-layer board, these peripherals eliminate a dedicated reset generator and a voltage monitor — the MCU handles its own start-up sequencing. Housed in a 48-LQFP with a 7x7 mm body and 0.50 mm pitch. The 36 I/O lines break out to the outer rows of the quad flat pack — a 4-layer board with ground and power planes is recommended for full fan-out. The internal oscillator eliminates an external crystal for basic clocking, though an external source can be fed through the SSI or UART pins if tighter timing is needed. ## Sourcing reality — obsolete, no direct replacement Texas Instruments lists this part as obsolete. No official successor or pin-compatible replacement is recorded.","metaTitle":"TI LM3S310-EQN25-C2T Cortex-M3 MCU, 25 MHz, 16 KB Flash","metaDescription":"Texas Instruments LM3S310-EQN25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4 KB RAM, 36 I/O, 48-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"36","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S310","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bdef0478df91eed4b7a3abae6c372c23.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S310-EQN25-C2T?","answer":"No pin-compatible alternative is recorded in the official documentation. The Stellaris family includes other Cortex-M3 parts in 48-LQFP, but each has a different peripheral set and memory map — a direct drop-in replacement does not exist. A board-level redesign with a current-generation TI MCU (such as the TM4C or MSPM0 series) is the practical migration path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S310-EQN25-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/LM3S310-EQN25-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:53:22.862Z","lastPublished":"2026-07-21T02:53:22.862Z","indexable":true}}