{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L443RCT6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L443RCT6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L443RCT6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L443RCT6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L443RCT6TR, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 256 KB Flash, 64 KB RAM, 64-LQFP, -40°C to 85°C.","salesMarkdown":"The flash wait state needs to be set to 1 above roughly 48 MHz, but the ART Accelerator on the STM32L4 series keeps most instruction fetches single-cycle from the 256 KB Flash. For the BOM line, this is the tier that balances active power draw against compute — the STM32L4 is built for low-power operation, so 80 MHz is the performance ceiling when you need it, not the continuous operating point. ## Memory budget: 256 KB Flash, 64 KB RAM 256 KB of program Flash and 64 KB of SRAM (organized as 64K x 8) is the mid-density option in the STM32L4 family. This is enough for a FreeRTOS-based application with a TCP/IP stack, a USB device stack, and a modest data logger. If the firmware image plus a 50% headroom margin fits in 256 KB, this part saves the cost of stepping up to the 512 KB or 1 MB variants. The 64 KB RAM includes a 4 KB backup SRAM that survives the lowest stop modes, useful for retaining calibration data or fault logs across a deep-sleep cycle. ## Connectivity and peripheral set for system integration The 52 I/O pins in the 64-LQFP package leave enough GPIO for a local display or keypad alongside the serial buses. For a motor drive or industrial gateway, the CAN and QSPI interfaces reduce the need for external bridge ICs.","metaTitle":"STM32L443RCT6TR STM32L4 MCU, 80 MHz, 256 KB Flash, 64-LQFP","metaDescription":"STMicroelectronics STM32L443RCT6TR: 32-bit ARM Cortex-M4 MCU at 80 MHz with 256 KB Flash, 64 KB RAM, 52 I/O, -40 to 85°C. 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":"Tape & Reel (TR) Cut Tape (CT)","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":"52","Core Processor":"ARM® Cortex®-M4","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L443","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8100","priceTiers":[{"qty":1,"price":"$6.81000","currency":"USD"},{"qty":10,"price":"$6.15600","currency":"USD"},{"qty":25,"price":"$5.86920","currency":"USD"},{"qty":100,"price":"$5.09620","currency":"USD"},{"qty":250,"price":"$4.86716","currency":"USD"},{"qty":500,"price":"$4.43772","currency":"USD"},{"qty":1000,"price":"$3.86511","currency":"USD"},{"qty":2000,"price":"$3.72196","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/95850be2029da0766935bf1246526e77.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L443RCT6TR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32L443RCT6TR and STM32L443RCT6?","answer":"The TR suffix indicates Tape & Reel packaging, while the base part number without TR typically ships in Tray or Tube. The silicon, firmware, and electrical characteristics are identical."},{"question":"What is STM32L443RCT6TR's listed speed?","answer":"The core runs at 80 MHz. This is the maximum clock for the ARM Cortex-M4 core in this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L443RCT6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L443RCT6TR 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}}