{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L073RZT6U","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L073RZT6U","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L073RZT6U","factsUrl":"https://icboms.com/api/mcp/products/STM32L073RZT6U","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L073RZT6U, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash, 20 KB RAM, 6 KB EEPROM, 51 I/O, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## 32 MHz Cortex-M0+ with integrated EEPROM — fit check for low-power control It packs 192 KB of Flash program memory, 20 KB of SRAM, and a 6 KB embedded EEPROM — the latter saves an external serial EEPROM for calibration constants or configuration parameters that need byte-level endurance. ## Active lifecycle — no near-term EOL concern For a production BOM that needs a stable MCU supply through the next several years, this part does not introduce an obsolescence risk. ## 64-LQFP — a layout-friendly footprint No exposed pad to stitch, no BGA reflow complexity — standard rework techniques handle it. The 51 GPIOs leave enough headroom for a segment LCD, a keypad matrix, and a few serial interfaces without multiplexing.","metaTitle":"STM32L073RZT6U STM32L0 ARM Cortex-M0+ MCU, 32 MHz","metaDescription":"STMicroelectronics STM32L073RZT6U 32-bit ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash, 20 KB RAM, 6 KB EEPROM, 51 I/O, -40°C to 85°C. 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":"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":"192KB (192K 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":"$7.0900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/106d684d3945a6b1be3c8ecd66f3e28c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L073RZT6U?","answer":"Within the STM32L0 family, the STM32L073xZ variants (same 64-pin LQFP footprint) share the same pinout and peripheral set. The key differentiator is Flash and RAM density — the STM32L073RZT6U sits at the 192 KB Flash / 20 KB RAM tier. A lower-density sibling in the same package may be pin-compatible but check the memory map and available I/O for your firmware image."},{"question":"What is the listed speed of STM32L073RZT6U?","answer":"The STM32L073RZT6U is rated for a 32 MHz core clock. This is the maximum CPU frequency; the actual throughput depends on Flash wait states and the clock tree configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L073RZT6U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L073RZT6U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:35:44.484Z","lastPublished":"2026-07-16T12:35:44.484Z","indexable":true}}