{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L442KCU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L442KCU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L442KCU6","factsUrl":"https://icboms.com/api/mcp/products/STM32L442KCU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, STM32L442KCU6, ARM Cortex-M4, 32-Bit Single-Core, 80MHz, 256KB Flash, 64K x 8 RAM, 1.71V ~ 3.6V, -40°C ~ 85°C, 32-UFQFN Exposed Pad.","salesMarkdown":"The 80 MHz core clock with single-precision FPU gives this part enough headroom for sensor fusion, motor control loops, or audio processing without stepping up to a higher-power MCU family. The 26 I/O pins in the 32-pin package limit parallel peripheral expansion; if you need more than a couple of SPI or UART interfaces simultaneously, check the pin muxing early. ## Connectivity and data converters On the connectivity side, this MCU includes CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART, and USB — a broad set for a 32-pin device. The USB peripheral supports device and OTG modes, which is often the deciding factor when choosing between this and a smaller STM32L0 part. The data converters are 10-channel 12-bit ADC and 2-channel 12-bit DAC, adequate for basic analog sensing and control but not high-resolution audio or precision measurement. ## Rework and handling notes The 32-UFQFN package with exposed pad is reworkable with hot air if you pre-bake the board per MSL requirements — the pad under the QFN acts as a heatsink, so a preheat from the bottom side helps avoid cold joints.","metaTitle":"STM32L442KCU6 STM32L4 ARM Cortex-M4 MCU, 80 MHz","metaDescription":"STM32L442KCU6 is an STM32L4 32-bit ARM Cortex-M4 MCU with 80 MHz speed, 256 KB Flash, 64 KB SRAM, USB, CAN, QSPI. Active lifecycle.","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":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"ARM® Cortex®-M4","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L442","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6700","priceTiers":[{"qty":1,"price":"$6.67000","currency":"USD"},{"qty":10,"price":"$5.99200","currency":"USD"},{"qty":25,"price":"$5.66480","currency":"USD"},{"qty":80,"price":"$4.90938","currency":"USD"},{"qty":230,"price":"$4.65761","currency":"USD"},{"qty":440,"price":"$4.17925","currency":"USD"},{"qty":945,"price":"$3.52468","currency":"USD"},{"qty":2940,"price":"$3.34845","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6b5c104fec092a3e2a58d7832dbf2f3c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L442KCU6/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent for STM32L442KCU6?","answer":"The STM32L151CBU6A is a pin-compatible alternative from the STM32L1 series, but it uses a Cortex-M3 core at 32 MHz and lacks USB and QSPI. It is not a functional equivalent if you need the 80 MHz clock or USB connectivity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L442KCU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L442KCU6 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}}