{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L412K8U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L412K8U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L412K8U6","factsUrl":"https://icboms.com/api/mcp/products/STM32L412K8U6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, STM32L412K8U6, 32-bit ARM Cortex-M4 MCU, 80MHz, 64KB Flash, 40K x 8 RAM, 1.71V-3.6V supply, 26 I/O, -40 to 85°C, 32-UFQFPN (5x5) exposed pad.","salesMarkdown":"## STM32L412K8U6 – 80 MHz Cortex-M4 in a compact 5x5 mm package It targets battery-operated instrumentation, sensor hubs, and industrial control where the balance of processing throughput and sub-µA stop-mode current matters. ## 64 KB Flash, 40 KB RAM – firmware headroom check 64 KB Flash is the program memory budget. If you are bringing up a FreeRTOS application with a USB stack and a modest sensor-fusion library, that fits comfortably. The 40 KB SRAM is generous for this density tier — enough for a 320x240 frame buffer (grayscale) or a moderate heap for dynamic allocation. The flash is single-banked, so read-while-write is not supported; plan your EEPROM-emulation writes accordingly. The ARM Cortex-M4 core includes a single-precision FPU and a DSP extension with single-cycle 16/32-bit MAC. At 80 MHz you get 100 DMIPS of headroom for real-time control loops, FFTs, or sensor fusion without breaking the power budget. The STM32L4 clock tree lets you run the core at 80 MHz while the peripherals tick at a lower frequency, saving dynamic current. Boot from internal flash with BOOT0 low; the PLL needs one flash wait state above 48 MHz — the reference manual covers the setup sequence. ## I/O and peripheral mix – 26 pins, Quad SPI, USB With 26 I/O pins in a 32-pin package, you get a useful peripheral set: Quad SPI for external flash or RAM, a full-speed USB device, three UARTs (one with ISO 7816 smart-card support), two SPIs (one with I2S), and two I2Cs. The 10-channel 12-bit ADC (1 Msps) covers analog inputs. Brown-out detect and a programmable voltage detector are on-chip, so an external supervisor is optional. The internal oscillator is factory-trimmed to 1% accuracy — adequate for UART and most non-CAN applications. ## Temperature grade and package – industrial range, exposed pad","metaTitle":"STM32L412K8U6 32-Bit ARM Cortex-M4 MCU, 80MHz, 64KB Flash","metaDescription":"STM32L412K8U6: STM32L4 series ARM Cortex-M4 MCU at 80MHz, 64KB Flash, 40KB RAM, 1.71-3.6V, -40 to 85°C, 32-UFQFPN.","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":"40K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"ARM® Cortex®-M4","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L412","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.6200","priceTiers":[{"qty":1,"price":"$4.62000","currency":"USD"},{"qty":10,"price":"$4.15400","currency":"USD"},{"qty":25,"price":"$3.92680","currency":"USD"},{"qty":80,"price":"$3.40325","currency":"USD"},{"qty":230,"price":"$3.22874","currency":"USD"},{"qty":440,"price":"$2.89714","currency":"USD"},{"qty":945,"price":"$2.44337","currency":"USD"},{"qty":2940,"price":"$2.37990","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/59cb278680a203c58c9194c1c9266f14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L412K8U6/alternatives.json"},"ai":{"faq":[{"question":"What is the flash memory size of STM32L412K8U6?","answer":"64 KB (64K x 8) of Flash program memory."},{"question":"What are the equivalents of STM32L412K8U6?","answer":"The STM32L151CBU6A is a functional alternative from the STM32L1 series, but it uses a Cortex-M3 core at 32 MHz with a different peripheral set — not a pin-compatible drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L412K8U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L412K8U6 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}}