{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L451CEU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L451CEU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L451CEU6","factsUrl":"https://icboms.com/api/mcp/products/STM32L451CEU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L451CEU6, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash, 160 KB SRAM, 1.71 V to 3.6 V supply, -40°C to 85°C, 48-UFQFN exposed pad.","salesMarkdown":"## What this STM32L451CEU6 brings to the board It is built for applications that need a balance of processing throughput and energy efficiency — think sensor hubs, industrial control nodes, battery-powered instrumentation, and IoT edge devices where every microamp matters. The 80 MHz core speed with the single-precision floating-point unit means this part handles real-time control loops and sensor fusion math without a separate DSP. If your firmware does FFTs, PID calculations, or motor-field-oriented control, the hardware FPU keeps the cycle count down compared to a software-emulated float library. The 160 KB SRAM gives enough headroom for a small RTOS heap and multiple data buffers — useful when you are logging sensor data or running a TCP/IP stack. The part includes CANbus, I²C, SPI, UART/USART, QSPI, SAI, and IrDA — enough serial interfaces to talk to sensors, displays, radios, and a CAN transceiver in a single design. Brown-out detect and a watchdog timer are built in, so external supervisor ICs are optional for many designs. The ROHS3 compliance is standard for EU-market builds.","metaTitle":"STM32L451CEU6 ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash","metaDescription":"STM32L451CEU6 32-bit MCU with ARM Cortex-M4 core at 80 MHz, 512 KB Flash, 160 KB SRAM, industrial temp -40°C to 85°C.","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, QSPI, SAI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L451","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.4100","priceTiers":[{"qty":1,"price":"$7.41000","currency":"USD"},{"qty":10,"price":"$6.69100","currency":"USD"},{"qty":25,"price":"$6.38000","currency":"USD"},{"qty":80,"price":"$5.53950","currency":"USD"},{"qty":230,"price":"$5.29061","currency":"USD"},{"qty":440,"price":"$4.82377","currency":"USD"},{"qty":1560,"price":"$4.20135","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0661af420d754d37ee77b070d7d5943e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L451CEU6/alternatives.json"},"ai":{"faq":[{"question":"What is the power consumption of STM32L451CEU6 in sleep mode?","answer":"The evidence does not provide a specific sleep-mode current figure for the STM32L451CEU6. The STM32L4 series is designed for ultra-low-power operation, but the exact draw depends on the wake-up configuration and retained SRAM. Refer to the datasheet's electrical characteristics table for the typical and maximum sleep-mode currents at 25°C and across temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L451CEU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L451CEU6 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}}