{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L433CBU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L433CBU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L433CBU6","factsUrl":"https://icboms.com/api/mcp/products/STM32L433CBU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series STM32L433CBU6, 32-bit ARM Cortex-M4 MCU, 80 MHz, 128 KB Flash, 64 KB SRAM, 1.71 V to 3.6 V supply, 38 I/O, 48-UFQFPN (7x7), -40°C to 85°C.","salesMarkdown":"## What the 80 MHz Cortex-M4 buys you on this 128 KB Flash part The STM32L433CBU6: The 48-UFQFPN (7x7) package with an exposed pad keeps the footprint small — 7 mm square — while the pad helps pull heat out if the MCU is driving a display or handling USB traffic continuously. ## Connectivity and peripherals — what's on the bus This MCU brings CANbus, USB, QSPI, and SAI (serial audio interface) on-chip, plus the usual I2C, SPI, and UART/USART blocks. The QSPI interface lets you attach external Flash or PSRAM for code shadowing or data logging without chewing up GPIO for a parallel bus. The LCD controller is also integrated, so a segment LCD panel can be driven directly — common in gas-pump displays, thermostats, and medical meters. No last-time-buy notice has been issued, and the part remains in ST's current production portfolio. The ROHS3 compliance is current, so it passes European and Asian environmental regulations without a waiver.","metaTitle":"STM32L433CBU6 STM32L4 MCU, 32-bit ARM Cortex-M4, 80 MHz","metaDescription":"STM32L433CBU6 32-bit ARM Cortex-M4 MCU, 80 MHz, 128 KB Flash, 64 KB SRAM, 1.71-3.6 V, -40 to 85°C, 48-UFQFPN. Active lifecycle, available 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":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, PWM, WDT","Connectivity":"CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L433","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7600","priceTiers":[{"qty":1,"price":"$5.76000","currency":"USD"},{"qty":10,"price":"$5.17000","currency":"USD"},{"qty":25,"price":"$4.88720","currency":"USD"},{"qty":80,"price":"$4.23563","currency":"USD"},{"qty":230,"price":"$4.01839","currency":"USD"},{"qty":440,"price":"$3.60570","currency":"USD"},{"qty":1560,"price":"$3.04095","currency":"USD"},{"qty":3120,"price":"$2.88890","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6e323d1827cad59f98cd5297642b464c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L433CBU6/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum operating frequency of STM32L433CBU6?","answer":"The core runs at 80 MHz. That is the maximum clock from the internal oscillator or an external crystal; the PLL can multiply it up from a lower source, but the system bus tops out at 80 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L433CBU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L433CBU6 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}}