{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L452RCI6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L452RCI6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L452RCI6","factsUrl":"https://icboms.com/api/mcp/products/STM32L452RCI6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, STM32L452RCI6, ARM Cortex-M4, 32-Bit Single-Core, 80MHz, 256KB Flash, 160K x 8 RAM, 64-UFBGA, -40°C~85°C.","salesMarkdown":"The STM32L452RCI6: It packs 256 KB of Flash and 160 KB of SRAM, which is enough headroom for sensor fusion, motor-control loops, or a modest GUI without external memory. The 64-UFBGA (5x5 mm) package saves board area but demands a controlled BGA assembly process — not a hand-solder part. The ARM Cortex-M4 core with FPU at 80 MHz handles single-cycle MAC operations and floating-point math without software emulation. That matters for real-time control loops — think field-oriented motor control or digital PSU compensation — where a fixed-point M3 would need more cycles. The SWD debug port stays alive even with the watchdog armed, so bring-up doesn't stall on a locked device. ## Memory and peripheral mix for the system architect 256 KB Flash and 160 KB SRAM place this MCU in the mid-range of the STM32L4 family. The SRAM is generous enough to hold a double frame buffer for a small TFT or a large audio buffer. Connectivity covers CANbus, I²C, SPI, UART/USART, USB, and QSPI — the QSPI interface lets you map an external serial Flash or PSRAM into the memory space for data logging or OTA staging. The 16-channel 12-bit ADC and single 12-bit DAC handle analog sensor inputs and one analog output. ## Package and PCB layout reality The 64-UFBGA (5x5 mm) is a 0.5 mm pitch BGA. The small ball diameter and tight pitch mean the PCB needs micro-vias or via-in-pad for breakout, and the assembly house must be comfortable with fine-pitch BGA reflow. X-ray inspection is non-negotiable after reflow. It is ROHS3 compliant. The base product number is STM32L452, and the series is STM32L4.","metaTitle":"STM32L452RCI6 STM32L4 MCU, ARM Cortex-M4, 80 MHz","metaDescription":"STMicroelectronics STM32L452RCI6 32-bit ARM Cortex-M4 MCU, 80 MHz, 256KB Flash, 160KB SRAM, 64-UFBGA. Active, ROHS3 compliant.","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":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-UFBGA (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.1800","priceTiers":[{"qty":1,"price":"$8.18000","currency":"USD"},{"qty":10,"price":"$7.39200","currency":"USD"},{"qty":25,"price":"$7.04840","currency":"USD"},{"qty":80,"price":"$6.12013","currency":"USD"},{"qty":230,"price":"$5.84504","currency":"USD"},{"qty":440,"price":"$5.32932","currency":"USD"},{"qty":945,"price":"$4.68855","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cad9ed35fe76f9279f9f7119d5fb8f94.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L452RCI6/alternatives.json"},"ai":{"faq":[{"question":"Can STM32L452RCI6 be substituted for STM32L452RET6?","answer":"The STM32L452RET6 is a different package variant (LQFP-64) of the same STM32L452 die. The STM32L452RCI6 is the 64-UFBGA version. They are not pin-compatible due to the different package, but the core, memory, and peripherals are identical. A board redesign is required to swap between them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L452RCI6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L452RCI6 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}}