{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S102-IGZ20-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S102-IGZ20-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S102-IGZ20-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S102-IGZ20-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 100 series LM3S102-IGZ20-C2T, 32-Bit Single-Core MCU, 20MHz, 8KB FLASH, 2K x 8 RAM, 18 I/O, 48-VFQFN Exposed Pad, -40°C~85°C.","salesMarkdown":"## 20 MHz Cortex-M3 — the right tier for sensor and control loops The LM3S102-IGZ20-C2T: This is the entry-level performance tier in the Cortex-M3 lineup — it handles sensor polling, serial protocol bridging, and simple PWM control loops without the cost or power of a 100 MHz part. The 18 general-purpose I/O pins and the peripheral set (I²C, SPI, UART/USART, Microwire, SSI) map directly to common embedded tasks: reading a temperature sensor over I²C, driving a small character LCD via SPI, or managing a brushed DC motor with the PWM and watchdog timer. ## Memory budget — 8 KB Flash, 2 KB SRAM With 8 KB of program Flash and 2 KB of SRAM, firmware must be lean. This is adequate for a single-protocol sensor node or a simple state machine, but leaves no room for a full RTOS heap or a TCP/IP stack. The 2 KB SRAM is shared with stack and variables — budget carefully if you are adding a circular buffer or a moderate lookup table. The Flash is rated for 100k erase/write cycles typical for this process node, sufficient for field-updateable firmware if wear-leveled. The supply range of 3.0 V to 3.6 V is a single 3.3 V rail — no dual-voltage domain needed.","metaTitle":"LM3S102-IGZ20-C2T Stellaris ARM Cortex-M3 MCU, 20 MHz","metaDescription":"LM3S102-IGZ20-C2T 32-bit ARM Cortex-M3 MCU at 20 MHz with 8 KB Flash, 2 KB SRAM, 18 I/O. Industrial temp range. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"Stellaris® ARM® Cortex®-M3S 100","Package":"Tape & Reel (TR)","RAM Size":"2K 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":"18","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-VFQFN Exposed Pad","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S102","Program Memory Size":"8KB (8K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-VQFN (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/23d05ab10bb41b40ecbd7351fdb7cc6b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the alternatives for LM3S102-IGZ20-C2T?","answer":"Within the Stellaris ARM Cortex-M3S 100 series, the LM3S102-IGZ20 (non-tape-and-reel suffix) is the same silicon in a different shipping medium. For a higher-density option, the LM3S1xxx family offers up to 64 KB Flash and 8 KB SRAM in the same 48-VFQFN footprint, but verify pin compatibility — the peripheral mix differs across density tiers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S102-IGZ20-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/LM3S102-IGZ20-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}}