{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L462REI6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L462REI6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L462REI6","factsUrl":"https://icboms.com/api/mcp/products/STM32L462REI6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, 80MHz, 512KB Flash, 160K x 8 RAM, CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB, 52 I/O, 64-UFBGA, -40°C to 85°C.","salesMarkdown":"## 80 MHz Cortex-M4 with FPU — what it buys for the control loop That 80 MHz figure is the headline number, but the real value is the DSP instruction set and floating-point unit — it handles FFTs, motor-control observers, and sensor fusion loops without a separate DSP or co-processor. ## Peripheral set — USB, CAN, and QSPI on one die This part carries a USB 2.0 full-speed controller (device or OTG), a CAN 2.0B interface, and a Quad-SPI memory-mapped interface alongside the usual I²C, SPI, and UART blocks. The QSPI is the one to note: it lets you memory-map an external serial NOR Flash for code execution or data logging, effectively expanding the 512 KB internal Flash without chewing up GPIO for a parallel bus. The 16-channel 12-bit ADC and single 12-bit DAC cover analog front-end needs for current sensing or analog output loops. ## Supply range and power — designed for a battery rail The STM32L4 family is ST's ultra-low-power line; the L462REI6 variant includes multiple stop and standby modes with sub-µA wakeup capability, though the exact current figures depend on the clock configuration and which peripherals are kept alive. For a battery-powered sensor node or a handheld instrument, this is the right MCU tier. ## Package and temperature — industrial fit in a 5x5 mm BGA Housed in a 64-ball UFBGA measuring 5x5 mm, this is a compact BGA that routes well on a four-layer board with microvias. The 52 I/O count in that small footprint is dense — plan for via-in-pad or at least a 0.5 mm pitch design rule. The STM32L4 series is a current mainstream portfolio at ST, so PCN activity is limited to die shrinks and package-site changes — the usual watch items but nothing that forces a redesign.","metaTitle":"STM32L462REI6 ARM Cortex-M4 MCU, 80MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32L462REI6 32-bit MCU with ARM Cortex-M4 core at 80MHz, 512KB Flash, 160KB SRAM, USB + CAN, 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, 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":"STM32L462","Program Memory Size":"512KB (512K 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":"$8.4600","priceTiers":[{"qty":1,"price":"$8.46000","currency":"USD"},{"qty":10,"price":"$7.64600","currency":"USD"},{"qty":25,"price":"$7.29040","currency":"USD"},{"qty":80,"price":"$6.33000","currency":"USD"},{"qty":230,"price":"$6.04557","currency":"USD"},{"qty":490,"price":"$5.51212","currency":"USD"},{"qty":980,"price":"$4.80089","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a102223952eb9e8586f8317d9ebee212.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L462REI6/alternatives.json"},"ai":{"faq":[{"question":"Is STM32L462REI6 obsolete or still active?","answer":"No last-time-buy risk — qualifies for new production builds."},{"question":"What is the closest functional alternative to STM32L462REI6?","answer":"The STM32L151CBU6A is a Cortex-M3 alternative at 32 MHz with 37 I/O and 2 DAC channels, but it lacks the FPU, the 80 MHz clock, and the QSPI interface — it is a lower-performance, lower-cost option for simpler battery-powered designs, not a pin-compatible drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L462REI6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L462REI6 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}}