{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L412CBU6P","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L412CBU6P","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L412CBU6P","factsUrl":"https://icboms.com/api/mcp/products/STM32L412CBU6P","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM Cortex-M4, 32-Bit Single-Core, 80MHz, 128KB (128K x 8) FLASH, 40K x 8 RAM, 48-UFQFN Exposed Pad, -40°C ~ 85°C.","salesMarkdown":"The STM32L412CBU6P: 38 I/Os and connectivity including I2C, SPI, Quad SPI, UART/USART, USB, LIN, IrDA, and infrared in a 7x7 mm exposed-pad package. ## 128 KB Flash and 40 KB SRAM — sizing the firmware and data buffers 128 KB Flash (128K x 8) and 40 KB SRAM (40K x 8). ## 48-UFQFN exposed pad — rework and thermal reality 7x7 mm exposed-pad package. The pad is the primary thermal path. ## Connectivity and peripherals — what the 38 I/Os buy you 38 I/Os with Quad SPI, USB, two I2C, three USARTs, two SPIs, and a 10-channel 12-bit ADC. Internal oscillator available. For production BOMs that need a second source, the STM32L412 family includes pin-compatible density options (64 KB, 128 KB, 256 KB Flash) in the same 48-UFQFN footprint, so a firmware-only change can adapt to a different Flash size without a PCB spin.","metaTitle":"STM32L412CBU6P STM32L4 MCU, ARM Cortex-M4, 80 MHz","metaDescription":"STM32L412CBU6P 32-bit ARM Cortex-M4 MCU, 80 MHz, 128 KB Flash, 40 KB SRAM, 48-UFQFN exposed pad, -40 to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Grade":"-","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"40K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"-","Connectivity":"I2C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"38","Qualification":"-","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-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":"128KB (128K 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":"$2.4392","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/59cb278680a203c58c9194c1c9266f14.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L412CBU6P in this component family?","answer":"Within the STM32L412 family, the STM32L412C8U6 (64 KB Flash) and STM32L412C6U6 (64 KB Flash, reduced SRAM) share the same 48-UFQFN footprint and pinout. The STM32L412CBU6P sits at the 128 KB Flash tier. For a larger Flash option, the STM32L432KCU6 (256 KB Flash) uses a different pinout (UFQFPN-32) and is not pin-compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L412CBU6P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L412CBU6P when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:40:12.662Z","lastPublished":"2026-07-16T12:40:12.662Z","indexable":true}}