The STM32L152C-DISCO Discovery kit allows easy evaluation of the 32-bit ARM Cortex-M3 STM32L152 ultra-low power microcontrollers.

• 32MHz STM32L152RCT6 Cortex-M3 core microcontroller with 256KB ECC Flash memory, 32KB RAM, 8KB ECC EEPROM
• 9 x Serial communication interfaces: USB, USART, SPI, I²C, I²S
• LCD Driver for 8 x 28 or 4 x 32 segments
• 23 x Capacitive sensing channels
• Pre-programmed bootloader
• On-board ST-LINK/V2 program/debug
• SWD connector
• MiniUSB connector
• ST-LINK/V2 mode switch
• I_DD current measurement unit
• 6 x Digit and 4 x Bar alphanumeric LCD display
• 2 x Status LEDs
• 2 x User LEDs
• Reset and User pushbuttons
• Linear touch sensor or four touchpads
• Headers for access to GPIO pins
• Power supply: USB VBus or external +5Vdc
• External application power supply: +3V and +5V

STM32L1 Series 32-Bit ARM® Cortex®-M3 Microcontrollers, STMicroelectronics

ARM® Cortex™-M3-based STM32 L1 series uses ST’s proprietary ultra-low-leakage process technology with an innovative autonomous dynamic voltage scaling and five (5) low-power modes offering unprecedented platform flexibility to fit any application. The STM32 L1 series extends the ultra-low power concept with no compromise on performance.

Ultra-Low-Power mode: 300nA with backup registers (3 wakeup pins)
Ultra-Low-Power mode + Real Time Clock (RTC): 900nA with backup registers (3 wakeup pins)
Low-Power Run mode: down to 9μA
Dynamic Run mode: down to 230μA/MHz