{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L452REI3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L452REI3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L452REI3","factsUrl":"https://icboms.com/api/mcp/products/STM32L452REI3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L452REI3, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80MHz, 512KB Flash, 160K x 8 RAM, 1.71V–3.6V, -40°C to 125°C, 64-UFBGA (5x5), 52 I/O.","salesMarkdown":"## 80 MHz Cortex-M4 with FPU — signal-chain ready The STM32L452REI3: The 80 MHz core with hardware FPU and DSP extensions lets this part run real-time sensor fusion, audio filtering, or motor-control loops without an external coprocessor. The 512 KB Flash and 160 KB RAM provide enough space for a full RTOS, a communication stack, and a data-logging buffer. The 12-bit ADC with 16 channels covers multi-axis analog inputs, and the single 12-bit DAC handles analog set-point or waveform generation. STMicroelectronics lists the STM32L452REI3 as Active. The 64-ball UFBGA (5×5 mm) is a fine-pitch, low-profile BGA suited for space-constrained designs.","metaTitle":"STM32L452REI3 ARM Cortex-M4 MCU, 80MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32L452REI3 32-bit MCU: ARM Cortex-M4 at 80MHz, 512KB Flash, 160KB RAM, 52 I/O, -40 to 125°C, 64-UFBGA. Active lifecycle.","metaKeywords":null},"attributes":{"series":"STM32L4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"160K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"52","Core Processor":"ARM® Cortex®-M4","Package / Case":"64-UFBGA","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L452","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"64-UFBGA (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.4000","priceTiers":[{"qty":1,"price":"$9.40000","currency":"USD"},{"qty":10,"price":"$8.48800","currency":"USD"},{"qty":25,"price":"$8.09320","currency":"USD"},{"qty":80,"price":"$7.02725","currency":"USD"},{"qty":230,"price":"$6.71139","currency":"USD"},{"qty":440,"price":"$6.11923","currency":"USD"},{"qty":945,"price":"$5.32965","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cad9ed35fe76f9279f9f7119d5fb8f94.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L452REI3/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32L452RE and STM32L452REI3?","answer":"The base STM32L452RE shares the same die and memory configuration; the difference is the temperature range and package variant. Confirm the exact suffix matches your BOM's temperature and footprint requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L452REI3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L452REI3 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}}