{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L422TBY6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L422TBY6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L422TBY6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L422TBY6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series ARM Cortex-M4 MCU, STM32L422TBY6TR, 80MHz, 128KB Flash, 40K x 8 RAM, 36-WLCSP, -40°C to 85°C.","salesMarkdown":"## Active-silicon sourcing — STM32L422TBY6TR lifecycle and BOM fit ROHS3 compliance is confirmed on the manufacturer record, so the part passes the restricted-substance thresholds for EU and most global markets without a waiver. ## Cortex-M4 core and memory — what 80 MHz and 128 KB flash buy you 128 KB of on-chip flash and 40K x 8 (40 KB) of SRAM leave room for a moderate application stack: the flash holds a FreeRTOS kernel plus application code, while the SRAM buffers a few hundred samples from a 10-channel 12-bit ADC before DMA transfer to memory. ## WLCSP package — board-level reality check The 36-WLCSP (Wafer-Level Chip-Scale Package) measures 2.58 mm x 3.07 mm, which is a true chip-scale footprint — no plastic overmold, just the silicon die with solder balls directly on the pads. This package demands a controlled reflow profile and a clean assembly process: the solder balls are the only standoff, so board flex or uneven solder paste thickness can crack joints.","metaTitle":"STM32L422TBY6TR STM32L4 MCU, 80MHz, 128KB Flash, 36-WLCSP","metaDescription":"STMicroelectronics STM32L422TBY6TR ARM Cortex-M4 MCU, 80MHz, 128KB flash, 40Kx8 RAM, 36-WLCSP. Active production, ROHS3. Sourced to order.","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":"Tape & Reel (TR) Cut Tape (CT)","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":"STM32L422","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":"$4.6500","priceTiers":[{"qty":1,"price":"$4.65000","currency":"USD"},{"qty":10,"price":"$4.17600","currency":"USD"},{"qty":25,"price":"$3.94760","currency":"USD"},{"qty":100,"price":"$3.42120","currency":"USD"},{"qty":250,"price":"$3.24576","currency":"USD"},{"qty":500,"price":"$2.91242","currency":"USD"},{"qty":1000,"price":"$2.45626","currency":"USD"},{"qty":2500,"price":"$2.33345","currency":"USD"},{"qty":5000,"price":"$2.24572","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2efe21316ed4e3e8c6d5a6b6ea5ca982.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L422TBY6TR/alternatives.json"},"ai":{"faq":[{"question":"How can I order STM32L422TBY6TR or check availability?","answer":"Submit an RFQ for current pricing and confirmed lead time against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L422TBY6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L422TBY6TR 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}}