{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8L151C4U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8L151C4U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8L151C4U6","factsUrl":"https://icboms.com/api/mcp/products/STM8L151C4U6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8L EnergyLite series, STM8L151C4U6, 8-bit MCU, 16 MHz STM8 core, 16KB Flash, 2KB RAM, 1KB EEPROM, 41 I/O, 25x12-bit ADC, 1x12-bit DAC, SPI/I2C/UART, 1.8-3.6V, -40 to 85°C, 48-UFQFPN exposed pad.","salesMarkdown":"The STM8L151C4U6 is an 8-bit MCU from ST's STM8L EnergyLite series, built around the STM8 core running at 16 MHz. That clock rate is the performance ceiling for this ultra-low-power architecture: it delivers enough throughput for sensor polling, serial communication, and control loops in battery-operated equipment, while the EnergyLite design keeps active-mode current draw low enough to extend cell life. The 16 MHz ceiling also means the flash wait-state logic is simple — no pipeline stalls to manage at this speed. Program memory is 16 KB of Flash, backed by 2 KB of SRAM and a separate 1 KB data EEPROM. The EEPROM is the standout here — true byte-erasable non-volatile storage that does not wear the Flash program space. For a firmware engineer, that means calibration constants, node IDs, and fault logs live in the EEPROM array without requiring a separate external serial EEPROM or a wear-leveling scheme in the Flash. The 2 KB RAM is tight; stack, interrupt vectors, and a modest frame buffer will consume most of it, so any significant data buffering needs to be managed in Flash or EEPROM with careful page-erase budgeting. Brown-out detect and POR are integrated, so the reset circuit needs only a decoupling cap — no external supervisor IC required. ## Analog and serial interface complement With 41 I/O lines in a 48-pin package, most of the pins are usable as analog inputs or digital GPIO. The internal oscillator trims the BOM further by eliminating the external crystal for the main clock. ## Package and PCB layout: 48-UFQFPN with exposed pad","metaTitle":"ST STM8L151C4U6 8-bit MCU, 16 MHz, 16 KB Flash, 48-UFQFPN","metaDescription":"STMicroelectronics STM8L151C4U6 EnergyLite 8-bit MCU: 16 MHz STM8 core, 16 KB Flash, 2 KB RAM, 1 KB EEPROM, 41 I/O, 25x12-bit ADC, DAC, -40 to 85°C.","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":"41","Core Processor":"STM8","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 25x12b; 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":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a6a751855e41d176288c66669f17dd61.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8L151C4U6/alternatives.json"},"ai":{"faq":[{"question":"Does the STM8L151C4U6 have a built-in DAC?","answer":"Yes, it includes a single 12-bit DAC alongside a 25-channel 12-bit ADC, reducing external analog component count."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8L151C4U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8L151C4U6 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}}