{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L073CZU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L073CZU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L073CZU6","factsUrl":"https://icboms.com/api/mcp/products/STM32L073CZU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 Series, ARM Cortex-M0+, 32-Bit Single-Core, 32MHz, 192KB Flash, 20K x 8 RAM, 6K x 8 EEPROM, 48-UFQFN Exposed Pad, -40°C~85°C.","salesMarkdown":"## What the 32 MHz Cortex-M0+ means for battery-powered designs The STM32L073CZU6 carries 192 KB of Flash, 20 KB of SRAM, and 6 KB of embedded EEPROM. The 48-UFQFN package with exposed pad (7x7 mm) keeps board area tight and thermal transfer to the PCB straightforward. ## Memory budget: 192 KB Flash, 20 KB RAM, 6 KB EEPROM The 192 KB program Flash is sized for mid-complexity firmware — think a Modbus RTU stack with a PID loop, or a simple GUI-driven thermostat. The 20 KB SRAM leaves room for moderate-size data buffers and a real-time OS with a handful of tasks. The 6 KB EEPROM (emulated in Flash or true EEPROM depending on the variant) stores calibration constants and configuration parameters without needing an external serial EEPROM. If your firmware image is tight on space, the 192 KB ceiling is worth checking early in the design phase. ## Peripherals and connectivity The part integrates a 10-channel 12-bit ADC and a 2-channel 12-bit DAC for analog sensor interfacing. The 37 I/O lines in the 48-pin package give enough headroom for a small keypad, an LCD segment drive, and a few status LEDs alongside the serial buses.","metaTitle":"STM32L073CZU6 ARM Cortex-M0+ MCU, 32MHz, 192KB Flash","metaDescription":"STMicroelectronics STM32L073CZU6 32-bit MCU, ARM Cortex-M0+ at 32MHz, 192KB Flash, 20KB RAM, 6KB EEPROM, -40°C to 85°C, 48-UFQFN.","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-UFQFN Exposed Pad","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~85°C(TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4871e6ea19450d665776dfcf01cc08ff.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is an alternative to STM32L073CZU6?","answer":"Within the STM32L0 series, the STM32L073CZT6 offers the same core and memory in a 48-LQFP package. The LQFP variant is easier to hand-solder and inspect, but the UFQFN is 1 mm thinner for height-constrained assemblies."},{"question":"Is STM32L073CZU6 compatible with 3.3V logic?","answer":"Yes. All I/O pins are 5 V tolerant when configured as inputs, but output high level tracks VDD — at 3.3 V supply it drives a valid 3.3 V CMOS logic level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L073CZU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L073CZU6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:28:32.034Z","lastPublished":"2026-07-16T12:28:32.034Z","indexable":true}}