{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L051T8Y6DTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L051T8Y6DTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L051T8Y6DTR","factsUrl":"https://icboms.com/api/mcp/products/STM32L051T8Y6DTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 series, ARM Cortex-M0+ 32-bit MCU, STM32L051T8Y6DTR, 32 MHz, 64 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 1.65 V to 3.6 V, 29 I/O, 36-WLCSP, -40°C to 85°C.","salesMarkdown":"## Small-package Cortex-M0+ for battery-duty It also packs 2 KB of true EEPROM — useful for storing calibration constants or configuration data without wearing the Flash. ## WLCSP — small footprint, careful handling The 36-WLCSP package (also listed as 36-UFBGA) saves board area but is not a field-swap-friendly part. No exposed leads to probe, no socket option — it is a direct-solder-to-board ball-grid array. For the rework lab tech: the balls are under the package, so visual alignment is tricky; you will need X-ray or a well-aligned stencil. On the bright side, the 29 I/O lines are enough for sensor interfaces, small keypads, or control loops in a compact IoT node. That means ST is still manufacturing it, no last-time-buy notice has been issued, and it remains eligible for new designs. For the BOM cost engineer: this part is single-sourced to ST, so if you need a second source, look at pin-compatible STM32L0 family members with the same WLCSP footprint — but there is no direct cross from another vendor. The active status gives you runway for at least several more years of production availability. ## What the 32 MHz core and 64 KB Flash mean for your BOM At 32 MHz, the Cortex-M0+ core is not a number-cruncher — it is a power-sipping controller for sensor fusion, simple motor commutation, or protocol bridging. The 64 KB Flash is enough for a modest firmware image with a bootloader and application code, but if your project needs over-the-air updates with dual-bank staging, you will bump into the ceiling. The 8 KB SRAM is tight for heavy buffering (e.g., audio or high-rate ADC logging). The 2 KB EEPROM is a nice bonus: you can store calibration or configuration data without wearing the Flash sectors. The 10-channel 12-bit ADC covers multiple analog inputs without an external mux.","metaTitle":"STM32L051T8Y6DTR ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash","metaDescription":"STMicroelectronics STM32L051T8Y6DTR 32-bit MCU with 32 MHz core, 64 KB Flash, 8 KB SRAM, 2 KB EEPROM, 1.65-3.6 V supply, -40 to 85°C, in 36-WLCSP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"32MHz","Series":"STM32L0","Package":"Tape & Reel (TR) Cut Tape (CT)","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"2K x 8","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"29","Core Processor":"ARM® Cortex®-M0+","Package / Case":"36-UFBGA, WLCSP","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L051","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-WLCSP","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4480b8ddc40b685393082b7ee2561685.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between STM32L051T8Y6DTR and STM32L051C8T6?","answer":"The key difference is the package: the STM32L051T8Y6DTR comes in a 36-WLCSP (wafer-level chip-scale package) while the STM32L051C8T6 uses a 48-pin LQFP. The WLCSP is much smaller but harder to hand-solder or rework. Core, memory, and peripherals are otherwise the same across the STM32L051x8 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L051T8Y6DTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L051T8Y6DTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T13:05:24.921Z","lastPublished":"2026-07-16T13:05:24.921Z","indexable":true}}