{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L051T8Y7DTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L051T8Y7DTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L051T8Y7DTR","factsUrl":"https://icboms.com/api/mcp/products/STM32L051T8Y7DTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L051T8Y7DTR, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 1.65V–3.6V, -40°C to 105°C, 36-UFBGA/WLCSP, Surface Mount.","salesMarkdown":"The STM32L051T8Y7DTR is an STMicroelectronics ultra-low-power MCU built around the ARM Cortex-M0+ core running at 32 MHz. The 36-WLCSP package (2.61 x 2.88 mm) is the smallest footprint in the STM32L0 family — a deliberate choice for wearable, medical-patch, or miniaturized sensor modules where every mm² counts. That fine-pitch, no-lead array demands careful PCB layout and a controlled reflow profile; it is not a hand-solder part. The 29 I/Os, plus I²C, SPI, UART, and I²S peripherals, give enough connectivity for most low-pin-count applications without needing an external port expander. ## Industrial temperature range — where this MCU goes The internal oscillator, brown-out detect, and POR peripherals keep the system reliable across that range without external supervisory ICs. For a procurement buyer filling a BOM line, this is the cleanest lifecycle posture — no surplus-channel dependency, no date-code risk.","metaTitle":"STM32L051T8Y7DTR ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash","metaDescription":"STMicroelectronics STM32L051T8Y7DTR 32-bit MCU, 32 MHz, 64 KB Flash, 8 KB RAM, 2 KB EEPROM, -40 to 105°C, 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)","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"2K x 8","Peripherals":"Brown-out Detect/Reset, DMA, I²S, 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~105°C(TA)","Supplier Device Package":"36-WLCSP (2.61x2.88)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8001","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4480b8ddc40b685393082b7ee2561685.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L051T8Y7DTR in this family?","answer":"Within the STM32L0 series, the STM32L051T8Y7DTR shares its pinout and package with other STM32L051x8 variants in the 36-WLCSP footprint. The key difference is Flash and RAM density — the STM32L051T6Y7DTR (32 KB Flash) and STM32L051C8T6 (64 KB Flash, LQFP-48) are functionally similar but differ in memory size or package. For a drop-in replacement with identical Flash and RAM, the base part number STM32L051T8Y7 covers the same silicon in different tape/reel options."},{"question":"What compliance documentation does ST provide for STM32L051T8Y7DTR?","answer":"STMicroelectronics publishes RoHS and REACH compliance declarations for the STM32L0 series. The specific compliance certificate for this order code is available on request with the RFQ — it covers the WLCSP package material declaration and halogen-free status per ST's standard documentation package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L051T8Y7DTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L051T8Y7DTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:36:38.639Z","lastPublished":"2026-07-16T12:36:38.639Z","indexable":true}}