{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8L151G4U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8L151G4U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8L151G4U6","factsUrl":"https://icboms.com/api/mcp/products/STM8L151G4U6","rawCanonicalId":null},"summary":{"shortDescription":"ST STM8L EnergyLite series STM8L151G4U6, 8-bit MCU, STM8 core, 16MHz, 16KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 1.8V to 3.6V, 26 I/O, -40°C to 85°C, 28-UFQFPN.","salesMarkdown":"## 16 MHz STM8 core in a 4×4 mm package — what that buys the board The ST STM8L151G4U6 is an 8-bit microcontroller from the STM8L EnergyLite family, built around the STM8 core running at up to 16 MHz. It packs 16 KB of Flash program memory, 2 KB of RAM, and 1 KB of EEPROM into a 28-pin UFQFPN package measuring just 4×4 mm. That combination targets designs where board space and battery life drive the BOM — think portable medical sensors, industrial handhelds, or IoT edge nodes that need to run months off a coin cell. The 26 general-purpose I/O lines, plus built-in peripherals including brown-out detect, POR, PWM, and a DMA controller, cover most control-loop and data-logging tasks without glue logic. ## Memory sizing and analog integration — fit for sensor-heavy designs The 1 KB EEPROM holds calibration constants or configuration parameters that survive power loss without external storage. If the firmware needs over-the-air update staging or a larger lookup table, step up to the 32 KB or 64 KB Flash siblings in the same package footprint. That eliminates an external ADC for multi-sensor acquisition (thermistor, strain gauge, battery monitor) and a DAC for setpoint output or waveform generation. The IrDA-capable UART and SPI/I²C interfaces connect to radio modules, displays, or external data converters cleanly. That means it is safe to qualify for a new production BOM today and expect multi-year supply continuity.","metaTitle":"ST STM8L151G4U6 8-bit MCU, STM8L EnergyLite, 16MHz","metaDescription":"ST STM8L151G4U6 8-bit MCU with 16KB Flash, 2KB RAM, 1KB EEPROM, 18x12b ADC, 1x12b DAC, 26 I/O, -40°C to 85°C, 28-UFQFPN. 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":"2K x 8","Core Size":"8-Bit","EEPROM Size":"1K x 8","Peripherals":"Brown-out Detect/Reset, DMA, IR, POR, PWM, WDT","Connectivity":"I²C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"STM8","Package / Case":"28-UFQFN","Product Status":"Active","Data Converters":"A/D 18x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-UFQFPN (4x4)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a6a751855e41d176288c66669f17dd61.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8L151G4U6/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM8L151G4U6 in this family?","answer":"Within the STM8L15x family, the STM8L151G4U3 is the same 28-pin UFQFPN package and same memory map. Check the operating temperature range for your environment before substituting."},{"question":"What is STM8L151G4U6's listed speed?","answer":"The core runs at up to 16 MHz. That is the maximum clock from the internal oscillator, no external crystal required for most applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8L151G4U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8L151G4U6 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}}