ARM MCU, Ultra Low Power, STM32 Family STM32L4 Series Microcontrollers, ARMCortex-M4, 32 bitProduct OverviewUltra-low power ARM Cortex-M4 32bit MCU+FPU, 100DMIPS. It supports 19xcommunication interfaces (USB OTG 2.0 full-speed, LPM and BCD), rich analogueperipherals (independent supply) and 16x timers.RTC with HW calendar, alarms and calibration3 PLLs for system clock, audio, ADC clock sourcesLCD 8x 40 or 4x 44 with step-up converterUp to 24 capacitive sensing channels: support touch key, linear and rotary touchsensorsUp to 114 fast I/Os, most 5V-tolerant, up to 14 I/Os with independent supplydown to 1.08V4x digital filters for the sigma delta modulator14-channel DMA controllerTrue random number generator, CRC calculation unit, 96-bit unique IDAES: 128/256-bit key encryption hardware acceleratorDevelopment support: serial wire debug (SWD), JTAG, Embedded Trace MacrocellProduct InformationProduct Range: STM32 Family STM32L4 Series MicrocontrollersDevice Core: ARM Cortex-M4No. of Bits: 32bitData Bus Width: 32bitOperating Frequency Max: 80MHzCPU Speed: 80MHzProgram Memory Size: 1MBRAM Memory Size: 128KBIC Case / Package: UFBGANo. of Pins: 132PinsMCU Case Style: UFBGANo. of I/O's: 109I/O'sInterfaces: CAN, I2C, I2S, SPI, UART, USART, USBEmbedded Interface Type: CAN, I2C, I2S, SPI, UART, USART, USBSupply Voltage Min: 1.71VSupply Voltage Max: 3.6VMCU Family: STM32MCU Series: STM32L4MSL: MSL 3 - 168 hours