{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8L101G2U6A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8L101G2U6A","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8L101G2U6A","factsUrl":"https://icboms.com/api/mcp/products/STM8L101G2U6A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8L101G2U6A, STM8L EnergyLite series, 8-bit MCU, 16MHz, 4KB Flash, 1.5KB RAM, 1.65V-3.6V supply, -40°C to 85°C, 28-UFQFPN (4x4).","salesMarkdown":"The 4 KB of on-chip Flash and 1.5 KB of RAM set a tight memory budget — this part is for lightweight control loops, sensor polling, or simple interface bridging, not data logging or complex protocol stacks. The 16 MHz core speed is typical for 8-bit MCUs in this class, but the 1.65 V minimum supply is lower than many competitors, which allows the part to run directly from a nearly-discharged Li-ion cell (down to about 3.0 V open-circuit) or a pair of alkaline batteries. The internal oscillator saves the cost and board area of an external crystal, though accuracy will drift with temperature — fine for UART timing or PWM dimming, not for a precision real-time clock. The 4 KB Flash sector size is 64 bytes, so wear-leveling overhead is negligible if you store calibration constants. ## Package and footprint: 28-UFQFPN (4x4 mm) The 26 I/O pins are enough for a keypad matrix, a small character LCD, or a handful of sensors and actuators, but not for a large parallel bus. That's enough for communicating with a simple external ADC, an EEPROM, or a radio module. The PWM channels can drive an LED or a small DC motor through a MOSFET. No CAN, no USB, no DAC — if your design needs those, you are looking at a different part. For a repair bench, an active part is always easier to source than an obsolete one — no digging through surplus channels or paying broker premiums.","metaTitle":"STM8L101G2U6A 8-bit MCU, 16MHz, 4KB Flash, 1.5KB RAM","metaDescription":"ST STM8L101G2U6A 8-bit MCU from STM8L EnergyLite series. 16MHz core, 4KB Flash, 1.5KB RAM, 1.65V-3.6V supply, -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":"STMicroelectronics","Speed":"16MHz","Series":"STM8L EnergyLite","Package":"Tray","RAM Size":"1.5K x 8","Core Size":"8-Bit","EEPROM Size":"-","Peripherals":"Infrared, POR, PWM, WDT","Connectivity":"I²C, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"STM8","Package / Case":"28-UFQFN","Product Status":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"4KB (4K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-UFQFPN (4x4)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8709","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c575074f8f2dd9684cfa819dce3a3ab7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8L101G2U6A/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM8L101G2U6A and STM8L101G2U3A?","answer":"The two parts share the same core, memory, and peripherals, but the U6A suffix indicates a different package variant (28-UFQFPN 4x4 mm) compared to the U3A. The pinout and footprint may differ, so a direct swap requires checking the mechanical drawings. The evidence does not provide a full cross-reference, so verify the package code against your PCB land pattern before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8L101G2U6A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8L101G2U6A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}