{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L451CCU6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L451CCU6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L451CCU6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L451CCU6TR","rawCanonicalId":null},"summary":{"shortDescription":"ST STM32L4 series STM32L451CCU6TR, ARM Cortex-M4 32-Bit MCU, 80MHz, 256KB Flash, 160K x 8 RAM, 48-UFQFPN, -40°C to 85°C, 1.71V to 3.6V.","salesMarkdown":"## 80 MHz Cortex-M4 — the speed jump that matters for low-power designs The STM32L451CCU6TR is an STMicroelectronics STM32L4 series microcontroller built around an ARM Cortex-M4 core with FPU, clocked at 80 MHz. The 48-pin UFQFPN package (7x7 mm, exposed pad) keeps the board area tight, with 38 I/Os routed out. The 256 KB Flash is split across two banks, enabling read-while-write for OTA updates if the application fits in one bank. 160 KB of SRAM supports a full Ethernet or CANopen stack buffer, a graphics frame buffer for a small display, or dual audio buffers for a voice trigger. ## Connectivity and analog — what the 48-pin package still fits Despite the compact 48-pin package, the STM32L451CCU6TR brings out CANbus, I²C, SPI, UART/USART, QSPI, and SAI — enough for a sensor hub with a CAN gateway, or an audio pipeline with I²S over SAI. The 10-channel 12-bit ADC and single 12-bit DAC cover analog front-end needs without an external converter. Brown-out detect, DMA, and a PWM timer set are included as peripherals.","metaTitle":"STM32L451CCU6TR STM32L4 MCU, 80MHz Cortex-M4, 256KB Flash","metaDescription":"STM32L451CCU6TR: 32-bit ARM Cortex-M4 at 80MHz, 256KB Flash, 160KB RAM, 48-UFQFPN. Active, ROHS3. Available to order against RFQ.","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":"Tape & Reel (TR) Cut Tape (CT)","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":"256KB (256K 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":"$6.0300","priceTiers":[{"qty":1,"price":"$6.03000","currency":"USD"},{"qty":10,"price":"$5.44400","currency":"USD"},{"qty":25,"price":"$5.19080","currency":"USD"},{"qty":100,"price":"$4.50710","currency":"USD"},{"qty":250,"price":"$4.30452","currency":"USD"},{"qty":500,"price":"$3.92470","currency":"USD"},{"qty":1000,"price":"$3.41829","currency":"USD"},{"qty":2500,"price":"$3.29169","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0661af420d754d37ee77b070d7d5943e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L451CCU6TR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32L451CCU6TR and STM32L451CCU6?","answer":"The TR suffix indicates Tape & Reel packaging, while the base STM32L451CCU6 typically ships in Tray or Tube. The silicon and all electrical ratings are identical."},{"question":"Does STM32L451CCU6TR come in tape and reel packaging?","answer":"Yes, the TR suffix confirms Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly."},{"question":"Is STM32L451CCU6TR RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is the closest functional alternative to STM32L451CCU6TR?","answer":"The STM32L151CBU6A is a functional peer from the STM32L1 series, but it runs a Cortex-M3 core at 32 MHz, with 32 KB Flash — a significant step down in performance and memory. For a pin-compatible upgrade within the L4 family, consider the STM32L452 or L496 series parts, though the exact pinout and peripheral set should be verified against the target application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L451CCU6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L451CCU6TR 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}}