{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L051R6T6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L051R6T6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L051R6T6","factsUrl":"https://icboms.com/api/mcp/products/STM32L051R6T6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 series, STM32L051R6T6, ARM Cortex-M0+ 32-bit MCU, 32 MHz, 32 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 51 I/O, 64-LQFP, -40°C to 85°C, 1.65V to 3.6V supply.","salesMarkdown":"The STM32L051R6T6 is an ultra-low-power 32-bit MCU from ST's STM32L0 series, built around the ARM Cortex-M0+ core running at 32 MHz. It is ROHS3 compliant. For a design starting today, this part is a safe anchor — no imminent end-of-life, no forced migration to a denser or more expensive variant.","metaTitle":"STM32L051R6T6 ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash","metaDescription":"STM32L051R6T6 32-bit MCU with ARM Cortex-M0+ core at 32 MHz, 32 KB Flash, 8 KB RAM, 2 KB EEPROM. Industrial temp range -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"STM32L0","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"32MHz","Series":"STM32L0","Package":"Tray","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"2K 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":"51","Core Processor":"ARM® Cortex®-M0+","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L051","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1600","priceTiers":[{"qty":1,"price":"$4.16000","currency":"USD"},{"qty":10,"price":"$3.73200","currency":"USD"},{"qty":25,"price":"$3.52800","currency":"USD"},{"qty":160,"price":"$3.05763","currency":"USD"},{"qty":320,"price":"$2.90084","currency":"USD"},{"qty":480,"price":"$2.60292","currency":"USD"},{"qty":960,"price":"$2.19524","currency":"USD"},{"qty":2400,"price":"$2.08548","currency":"USD"},{"qty":4960,"price":"$2.00707","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4480b8ddc40b685393082b7ee2561685.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L051R6T6/alternatives.json"},"ai":{"faq":[{"question":"Does STM32L051R6T6 have internal EEPROM?","answer":"Yes, it integrates 2 KB of EEPROM (2K x 8), which is useful for storing calibration constants or configuration data without an external serial EEPROM."},{"question":"When sourcing STM32L051R6T6, what's the closest functional second-source — STM32L151CBU6A?","answer":"The STM32L151CBU6A is a pin-compatible alternative within the STM32L1 series, but it uses a Cortex-M3 core (same 32 MHz speed) and adds a 2-channel DAC and USB connectivity. The L051R6T6 is the lower-power, lower-cost entry point; the L151 trades some power efficiency for extra peripherals. Both are active, so dual-sourcing is possible if the BOM can accommodate the L151's slightly higher current draw."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L051R6T6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L051R6T6 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}}