This STM32 Nucleo-64 board provides an affordable and flexible way for users to build prototypes with the ultra-low power STM32L152RET6 microcontroller. Arduino Uno v3 and ST morpho headers expand the functionality with a choice of Shields. The integrated ST-LINK/V2-1 debugger/programmer comes with the STM32 comprehensive software HAL library, software examples, as well as direct access to the ARM mbed on-line resources. Supported by wide choice of Integrated Development Environments (IDEs) including IAR, Keil, GCC-based and ARM mbed.

• STM32L152RET6 32MHz Cortex-M3 core microcontroller with 512KB ECC Flash memory, 80KB RAM, 16KB ECC EEPROM
• Serial communication interfaces: USART, SPI, I²C, I²S, USB
• 23 x Capacitive sensing channels
• LCD driver for up to 4 x 32 or 8 x 28 segments
• CRC calculation unit
• 96-bit unique ID
• Arduino Uno v3 connectivity support
• ST morpho extension pin headers for access to all GPIO
• On-board ST-LINK/V2-1 debugger/programmer with SWD connector
• Flexible board power supply
• 3 x LEDs: USB communication, Power and User
• Reset and User pushbuttons
• ARM mbed™ Enabled (see http://mbed.org)

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