{"product_id":"stm32l431cby6tr","title":"STM32L431CBY6TR","description":"\u003cp\u003eThe STM32L431CBY6TR is an ultra-low-power 32-bit microcontroller from STMicroelectronics, featuring an ARM Cortex-M4 core with FPU at 80MHz. It offers 128KB of flash and 64KB of SRAM in a compact 49-UFBGA package. Operating from 1.71V to 3.6V, it includes brown-out detection, DMA, PWM, and WDT. This MCU is optimized for battery-powered and space-constrained applications requiring high computational performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eARM Cortex-M4 with FPU accelerates mathematical operations, improving control loop and DSP performance.\u003c\/li\u003e\n\u003cli\u003eUltra-low supply voltage (1.71V) enables direct operation from single-cell batteries, reducing power conversion losses.\u003c\/li\u003e\n\u003cli\u003e64KB SRAM provides ample buffer for complex applications and real-time data processing.\u003c\/li\u003e\n\u003cli\u003eWLCSP package minimizes PCB footprint, ideal for compact wearable and IoT devices.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWearable Health Monitors\u003c\/h3\u003e\u003cp\u003eThe Cortex-M4 with FPU at 80MHz processes biosignals like ECG and PPG in real-time, while the 1.71V minimum supply extends battery life in smartwatches.\u003c\/p\u003e\u003ch3\u003eSmart Home Hubs\u003c\/h3\u003e\u003cp\u003eWith 64KB RAM and multiple communication peripherals, it can manage Zigbee\/Thread protocols and local automation rules in a central hub.\u003c\/p\u003e\u003ch3\u003ePortable Instrumentation\u003c\/h3\u003e\u003cp\u003eThe WLCSP package and low-power modes make it suitable for handheld multimeters and oscilloscopes, providing high-speed ADC sampling and data logging.\u003c\/p\u003e\u003ch3\u003eIndustrial Sensor Interfaces\u003c\/h3\u003e\u003cp\u003eIts DMA and PWM capabilities enable precise sensor excitation and data acquisition in pressure or flow transmitters, operating reliably in -40°C to 85°C environments.\u003c\/p\u003e\u003ch3\u003eConsumer Robotics\u003c\/h3\u003e\u003cp\u003eThe FPU accelerates PID control loops for small robots, while brown-out detection ensures safe shutdown during battery voltage dips.\u003c\/p\u003e\u003ch3\u003eEnergy Harvesting Devices\u003c\/h3\u003e\u003cp\u003eWith a 1.71V threshold, it can operate directly from a single solar cell or TEG, enabling maintenance-free wireless sensors.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eSTMicroelectronics\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eSTM32L4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eTape \u0026amp; Reel (TR) | NULL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Processor\u003c\/td\u003e \t\u003ctd\u003eARM® Cortex®-M4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Size\u003c\/td\u003e \t\u003ctd\u003e32-Bit Single-Core\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSpeed\u003c\/td\u003e \t\u003ctd\u003e80MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eConnectivity\u003c\/td\u003e \t\u003ctd\u003eCANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART\/USART\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePeripherals\u003c\/td\u003e \t\u003ctd\u003eBrown-out Detect\/Reset, DMA, PWM, WDT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of I\/O\u003c\/td\u003e \t\u003ctd\u003e39\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Size\u003c\/td\u003e \t\u003ctd\u003e128KB (128K x 8)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Type\u003c\/td\u003e \t\u003ctd\u003eFLASH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eEEPROM Size\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eRAM Size\u003c\/td\u003e \t\u003ctd\u003e64K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e1.71V ~ 3.6V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eData Converters\u003c\/td\u003e \t\u003ctd\u003eA\/D 10x12b; D\/A 2x12b\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOscillator Type\u003c\/td\u003e \t\u003ctd\u003eInternal\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification AEC\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e49-WLCSP (3.14x3.13)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e49-UFBGA, WLCSP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What core does the STM32L431CBY6TR use?\u003c\/dt\u003e\n\u003cdd\u003eA: It uses the ARM Cortex-M4 core with FPU, running at up to 80MHz for efficient signal processing.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the supply voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates from 1.71V to 3.6V, supporting low-power battery applications.\u003c\/dd\u003e\n\u003cdt\u003eQ: How much flash and RAM does it have?\u003c\/dt\u003e\n\u003cdd\u003eA: It provides 128KB of flash memory and 64KB of SRAM, suitable for complex firmware.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is this variant?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 49-UFBGA (WLCSP) package, ideal for miniaturized PCB designs.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"STMicroelectronics","offers":[{"title":"Default Title","offer_id":50886874333473,"sku":"STM32L431CBY6TR","price":8.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_MCU_497_WLCSP49_A04Z_Y_49_9ec07b53-34e3-4c64-8afe-27b9f10bd6a9.jpg?v=1739309722","url":"https:\/\/hqickey.com\/products\/stm32l431cby6tr","provider":"HQICKEY","version":"1.0","type":"link"}