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 20xcommunication interfaces (USB OTG 2.0 full-speed, LPM and BCD), rich analogueperipherals (independent supply) and 16x timers.220 ULPBENCH score energy benchmark3 PLLs for system clock, audio, ADC clock sourcesLCD 8x 40 or 4x 44 with step-up converterRTC with HW calendar, alarms and calibrationUp 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 sigma delta modulator14-channel DMA controllerTrue random number generator, CRC calculation unit, 96-bit unique IDDevelopment 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: LQFPNo. of Pins: 64PinsMCU Case Style: LQFPNo. of I/O's: 51I/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