{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L073CZT3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L073CZT3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L073CZT3","factsUrl":"https://icboms.com/api/mcp/products/STM32L073CZT3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L073CZT3, ARM Cortex-M0+ 32-bit MCU, 32 MHz, 192 KB Flash, 20 KB RAM, 6 KB EEPROM, 48-LQFP, -40 to 125°C.","salesMarkdown":"It runs at 32 MHz and carries 192 KB of Flash program memory, 20 KB of SRAM, and 6 KB of embedded EEPROM — enough on-chip storage to hold a moderate firmware image plus calibration or configuration data without an external serial EEPROM. The 48-LQFP package (7x7 mm) exposes 37 GPIOs, along with I²C, SPI, USART, and USB connectivity. 32 MHz is the maximum core clock for this STM32L0 device. That is sufficient for sensor polling, communication protocol handling (I²C, SPI, UART), and simple control loops. ## On-chip memory: Flash, RAM, and EEPROM The 20 KB SRAM handles typical data buffers and stack; if the design needs larger frame buffers or a TCP/IP stack, consider an external SRAM or a part with more RAM. The 6 KB EEPROM is a differentiator: it stores calibration constants, device IDs, or fault logs without an external I²C EEPROM, saving board space and a chip. EEPROM endurance is typically 100k write cycles, adequate for periodic parameter updates.","metaTitle":"ST STM32L073CZT3 ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash","metaDescription":"STMicroelectronics STM32L073CZT3 32-bit MCU, ARM Cortex-M0+ core at 32 MHz, 192 KB Flash, 20 KB RAM, 6 KB EEPROM, 48-LQFP, -40 to 125°C. Active production, available to order.","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":"37","Core Processor":"ARM® Cortex®-M0+","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 10x12b; 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~125°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.5120","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/106d684d3945a6b1be3c8ecd66f3e28c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L073CZT3/alternatives.json"},"ai":{"faq":[{"question":"What is STM32L073CZT3's listed speed?","answer":"The core runs at 32 MHz maximum."},{"question":"What is the operating temperature range of STM32L073CZT3?","answer":"It is rated for -40°C to 125°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L073CZT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L073CZT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}