{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L071CBT3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L071CBT3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L071CBT3","factsUrl":"https://icboms.com/api/mcp/products/STM32L071CBT3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L071CBT3, ARM Cortex-M0+ 32-bit MCU, 32MHz, 128KB Flash, 20KB RAM, 6KB EEPROM, 48-LQFP, -40 to 125°C, 1.65V to 3.6V.","salesMarkdown":"The part is rated for industrial temperature spans from -40 to 125 °C and operates from a supply voltage as low as 1.65 V up to 3.6 V, making it a natural fit for battery-powered or energy-harvesting equipment where every microamp counts. It comes in a 48-pin LQFP package (7x7 mm) with 37 GPIOs, a 13-channel 12-bit ADC, and connectivity including I²C, SPI, and USART. The 32 MHz clock is the maximum for this Cortex-M0+ implementation in the STM32L0 family. For a repair-bench swap or a new BOM line, that speed determines whether the MCU can keep up with the peripheral bus timing. ## On-chip EEPROM — no external part needed The 6 KB of embedded EEPROM is a genuine BOM-simplifier. It eliminates the separate serial EEPROM IC and its associated PCB trace routing, which is one less component to fail or go end-of-life. For field-service techs, it means calibration data survives a firmware reload without an extra programming step. The EEPROM is rated for a high endurance cycle count, though the exact figure isn't listed here — treat it as suitable for frequent parameter updates.","metaTitle":"ST STM32L071CBT3 ARM Cortex-M0+ MCU, 32MHz, 128KB Flash","metaDescription":"STM32L071CBT3 32-bit MCU, 32MHz, 128KB Flash, 20KB RAM, 6KB EEPROM, -40 to 125°C, 1.65-3.6V. Active production. Sourced to order, RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"32MHz","Series":"STM32L0","Package":"Tray","RAM Size":"20K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"6K x 8","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"I²C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"37","Core Processor":"ARM® Cortex®-M0+","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 13x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L071","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bdf0122ce3763ca70cc9e1606c816ad1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L071CBT3/alternatives.json"},"ai":{"faq":[{"question":"What is the operating voltage range for STM32L071CBT3?","answer":"The supply voltage range is 1.65 V to 3.6 V, covering single-cell alkaline, Li-Po, and standard 3.3 V rails."},{"question":"Does STM32L071CBT3 have internal EEPROM?","answer":"Yes, it includes 6 KB of embedded EEPROM, eliminating the need for an external serial EEPROM in most designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L071CBT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L071CBT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-11T18:12:59.411Z","lastPublished":"2026-07-11T18:12:59.411Z","indexable":true}}