{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L412TBY6PTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L412TBY6PTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L412TBY6PTR","factsUrl":"https://icboms.com/api/mcp/products/STM32L412TBY6PTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM Cortex-M4, 32-Bit Single-Core MCU, 80MHz, 128KB Flash, 40K x 8 RAM, 36-WLCSP, -40°C~85°C.","salesMarkdown":"The STM32L412TBY6PTR is an STMicroelectronics STM32L4 series microcontroller built around an ARM Cortex-M4 core running at 80 MHz. The 32-bit single-core architecture with the Cortex-M4 FPU handles sensor fusion, motor control loops, or audio processing efficiently. For designs that outgrow this memory footprint, the STM32L4 family offers density upgrades without changing the core peripheral set. On the connectivity side, it brings I²C, SPI, Quad SPI, UART/USART, LINbus, IrDA, infrared, and USB — enough for sensor hubs, display interfaces, and serial bridges. The 30 GPIOs in the 36-WLCSP package constrain board routing, so plan the pin assignment early. ## Package and assembly — 36-WLCSP Moisture sensitivity is MSL 1 typically for WLCSP, but verify the specific bake requirements from the reel label. The base product number is STM32L412, so any PCN or EOL notification from ST will reference that base.","metaTitle":"STM32L412TBY6PTR – STM32L4 ARM Cortex-M4 MCU, 80 MHz","metaDescription":"STMicroelectronics STM32L412TBY6PTR: 32-bit ARM Cortex-M4 MCU, 80 MHz core, 128 KB Flash, 40K x 8 RAM, 36-WLCSP package, -40°C 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","Speed":"80MHz","Series":"STM32L4","Package":"Tape & Reel (TR)","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":"30","Core Processor":"ARM® Cortex®-M4","Package / Case":"36-UFBGA, WLCSP","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":"36-WLCSP (2.58x3.07)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6843","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/59cb278680a203c58c9194c1c9266f14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L412TBY6PTR/alternatives.json"},"ai":{"faq":[{"question":"Can STM32L412TBY6PTR be used as a replacement for STM32L412KB?","answer":"Both parts share the same STM32L412 base and core architecture, but the STM32L412KB uses a different package (LQFP32). The WLCSP package of the TBY6PTR is not pin-compatible with the LQFP — a board redesign is required. Check the memory and peripheral configuration in the respective datasheets to confirm functional equivalence."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L412TBY6PTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L412TBY6PTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}