STMicroelectronics STM32L EnergyLite™ 32-bit microcontrollers combine unique STMicroelectronics low-leakage 130nm process technology and optimized power-saving architecture to deliver industry-leading energy-saving performance. STM32L ARM Cortex-M3 based MCUs are part of the STMicroelectronics EnergyLite platform of ultra low-power products enabling designers to optimize performance, function, and battery life and meet efficiency-related criteria such as eco-design targets. STM32L MCUs consume only 9µA at 32kHz in low power mode and 230 µA/MHz in dynamic run mode. The STM32L151 and STM32L152 differ in that the STM32L152 features an LCD controller. These ARM Cortex-M3 EnergyLite MCUs are well suited for a wide range of applications, including medical and handheld equipment, application control, user interface, PC peripherals, gaming, GPS, sports equipment, alarm systems, wired and wireless sensors, video intercom, and utility metering.