{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L073RBT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L073RBT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L073RBT6","factsUrl":"https://icboms.com/api/mcp/products/STM32L073RBT6","rawCanonicalId":null},"summary":{"shortDescription":"ST STM32L0 series, ARM Cortex-M0+, 32-Bit Single-Core, 32MHz, 128KB (128K x 8) FLASH, 20K x 8 RAM, 6K x 8 EEPROM, 64-LQFP (10x10), -40°C~85°C.","salesMarkdown":"## What this STM32L073RBT6 brings to a low-power design ## 32 MHz Cortex-M0+ — enough throughput for control loops, not for DSP The 32 MHz core speed handles sensor polling, PID loops, and Modbus frames. ## Memory map: 128 KB Flash, 20 KB RAM, 6 KB EEPROM The 128 KB Flash holds firmware for a typical single-protocol field device with a modest GUI. The 20 KB RAM is the tight spot — if your application uses a large frame buffer or a USB descriptor heap, budget carefully. The 6 KB EEPROM is the standout feature: it supports byte-wise writes without erase cycles, so you can log runtime hours, fault counters, or calibration offsets over the device lifetime without wearing out the Flash. ## LCD driver and analog peripherals reduce BOM count The integrated LCD controller drives segmented glass displays directly, eliminating a separate driver IC in many metering and HMI designs. ## Pin-compatible alternatives within the STM32L0 family The STM32L073RBT6 shares its 64-pin LQFP footprint with other STM32L0 devices that differ in memory and peripheral mix.","metaTitle":"ST STM32L073RBT6 ARM Cortex-M0+ MCU, 32 MHz, 128 KB Flash","metaDescription":"STMicroelectronics STM32L073RBT6 32-bit MCU with 32 MHz Cortex-M0+, 128 KB Flash, 20 KB RAM, 6 KB EEPROM, LCD driver, USB, industrial temp. Sourced to order against RFQ.","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, LCD, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART, USB","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; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L073","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/106d684d3945a6b1be3c8ecd66f3e28c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L073RBT6/alternatives.json"},"ai":{"faq":[{"question":"Does STM32L073RBT6 have a built-in LCD driver?","answer":"Yes, the STM32L073RBT6 integrates a segment LCD controller that drives glass displays directly, reducing external BOM for metering and HMI applications."},{"question":"What is the operating voltage of STM32L073RBT6?","answer":"The supply range is 1.8 V to 3.6 V, allowing direct operation from two alkaline cells or a single Li-ion battery."},{"question":"Does STM32L073RBT6 have USB connectivity?","answer":"Yes, it includes USB connectivity alongside I²C, SPI, UART/USART, IrDA, and LINbus interfaces."},{"question":"What are the alternatives to STM32L073RBT6?","answer":"Pin-compatible alternatives within the 64-pin LQFP footprint include the STM32L071RBT6 (no LCD/USB) and the STM32L072RBT6 (larger RAM, dual USB). Verify memory and peripheral requirements before substituting."},{"question":"Is STM32L073RBT6 RoHS compliant?","answer":"The manufacturer lists this part as RoHS compliant. The 64-LQFP package is lead-free and meets current EU directive requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L073RBT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L073RBT6 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}}