{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L433CCT6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L433CCT6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L433CCT6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L433CCT6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L433CCT6TR, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 256 KB Flash, 64 KB RAM, 48-LQFP, -40°C to 85°C.","salesMarkdown":"## What this STM32L4 MCU brings to a BOM It targets applications where a balance of processing throughput — including DSP and floating-point instructions — and low active/standby current is needed: industrial sensors, portable medical devices, metering, and IoT edge nodes that run on battery or energy-harvesting supplies. The 48-LQFP package keeps the board footprint compact while leaving 38 I/O accessible for sensor interfaces, display segments, or control loops. If you are coming from an STM32L1 (Cortex-M3 at 32 MHz), this part roughly doubles the arithmetic throughput per cycle on top of the clock increase — useful for FFT-based vibration analysis or closed-loop motor current regulation. The flash wait state needs to be set to 1 when the system clock exceeds about 32 MHz, or the first branch after a cache miss will hard-fault. Keep that in the bring-up checklist. ## Memory sizing for the firmware engineer The Flash is enough for a FreeRTOS kernel, a USB stack, and a modest application image with room for OTA staging if you use the 2 KB page erase granularity. The 64 KB SRAM splits across a main SRAM (48 KB) and a retained SRAM2 (16 KB) that survives Stop modes — useful for keeping calibration data or a comms buffer alive without waking the core. ## Connectivity and peripherals for system integration The peripheral set includes CANbus, USB (device and OTG), QSPI for external memory expansion, SAI for audio codec interfaces, and multiple I²C/SPI/UART channels. The 10x12-bit SAR ADC with hardware oversampling and two 12-bit DACs cover analog front-end needs without external converters. The LCD controller drives up to 8x40 segments directly — a feature that saves a segment driver IC in display-based designs. ## Package and handling for the rework bench No hidden balls, no X-ray needed. If the part comes from Tape & Reel (the TR suffix), the moisture sensitivity level is typically MSL 3 — bake at 125°C for 48 hours if the sealed bag has been open longer than the floor-life window. The orientation is unambiguous: pin 1 chamfer at the top-left when the part is placed with the text readable. For new designs, the STM32L4 series is still the recommended ultra-low-power platform from ST, so roadmap risk is low.","metaTitle":"STM32L433CCT6TR ARM Cortex-M4 MCU, 80 MHz, 256 KB Flash","metaDescription":"STMicroelectronics STM32L433CCT6TR 32-bit MCU with ARM Cortex-M4 core at 80 MHz, 256 KB Flash, 64 KB RAM, 48-LQFP. Active lifecycle, ROHS3 compliant.","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":"64K x 8","Core Size":"32-Bit","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-LQFP","Product Status":"Active","Data Converters":"A/D 10x12b SAR; D/A 2x12b","Oscillator Type":"External, Internal","lifecycle_stage":"eol_hot","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.0500","priceTiers":[{"qty":1,"price":"$6.05000","currency":"USD"},{"qty":10,"price":"$5.46600","currency":"USD"},{"qty":25,"price":"$5.21200","currency":"USD"},{"qty":100,"price":"$4.52540","currency":"USD"},{"qty":250,"price":"$4.32204","currency":"USD"},{"qty":500,"price":"$3.94068","currency":"USD"},{"qty":1000,"price":"$3.43220","currency":"USD"},{"qty":2400,"price":"$3.30508","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/37b3da3088ec0d3cef475dc2db554cdd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L433CCT6TR/alternatives.json"},"ai":{"faq":[{"question":"Does STM32L433CCT6TR have any known equivalents or substitutes?","answer":"The closest functional alternative within ST's portfolio is the STM32L151CBU6A, which uses a Cortex-M3 core at 32 MHz with similar peripheral set and 37 I/O. The STM32L433CCT6TR offers roughly 2.5x the core clock speed plus DSP/FPU capability, so the swap is not pin-for-pin and requires firmware porting. No direct second-source from another manufacturer is listed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L433CCT6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L433CCT6TR 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}}