New STM32 Ultra-Low-Power Microcontrollers from STMicroelectronics Deliver Industry’s Best Solution for Energy-Sensitive DesignsRich development ecosystem helps designers cut power consumption to the bone
With run consumption down to 87µA/MHz, 440nA stop mode with full RAM data retention, a low-power time counter, and fast wakeup time of 3.5µs the STM32L0 allows applications to maximize use of energy-saving modes. The STM32L0 series enables designers of products such as computer peripherals, healthcare monitors and trackers, industrial sensors, and smart-home devices to deliver market-leading battery life and create slim and lightweight new styles. Where other devices suffer rapidly increasing current consumption at higher temperatures, ST’s unique process technology maintains stability over a wide temperature range, ensuring these devices offer the world’s lowest power consumption at 125°C. The STM32L0 series also has the world’s lowest Analog-to-Digital Converter (ADC) power consumption. The 12-bit on-chip ADC draws only 48µA when operating at 100ksample/s. Built-in hardware oversampling increases the ADC resolution to 16-bits.
Over 30 part numbers offer basic entry-level configurations as well as variants featuring USB connectivity with the option of an LCD controller up to 8x28. USB full-speed enabled devices support crystal-less operation, USB Battery Charger Detection (BCD), and energy-saving Link Power Management (LPM).
Enhanced STM32CubeMX design tools, including the Power Consumption Calculator wizard now support the STM32L0, helping designers use the new devices to reach ultra-low power-consumption targets. STM32CubeMX helps accelerate generation of initialization code and simplifies porting of designs between different STM32 devices. A new STM32L0 Nucleo board featuring Morpho and Arduino-compatible connectors and fully supported by mbed.org will be also available in mid 2014.
ST will further enrich the STM32L0 ecosystem with a Discovery kit that will host an ePaper display as well as a linear capacitive touch and self-test measurement system enabling users to measure MCU power consumption in real-time. The STM32L0 Discovery-kit will also be available in mid 2014. Both STM32L0 Nucleo board and Discovery-kit feature an ST-Link/V2 hardware debugger.
Optimized sample-code snippets dedicated to STM32L0 MCUs will also be available for both the Nucleo board and Discovery kit, providing further help for designers seeking the lowest power-consumption profile.
Priced from $0.93 for high volume orders, the new STM32L0 microcontrollers are offered in various package options from 2.7mm x 2.7mm WLCSP36 to 10mm x 10mm LQFP64, and with up to 64KByte of Flash, 8KByte of SRAM, and 2KByte of EEPROM.
For engineers in Europe, ST is hosting a series of free seminars on ultra-low-power microcontroller-based firmware designs with a focus on RF. Attendees get a free STM32 L0 Nucleo kit and the M24SR NFC/RFID memory shield.
Note to Editors:
The STM32L0 series sits between the ultra low-power STM8L 8-bit microcontrollers and the pin-compatible STM32L family based on the 32-bit Cortex-M3 core. ST now offers one of the largest portfolios of ultra low-power microcontrollers based on the ARM Cortex-M architecture, extending from 32KByte to 512KByte of Flash with up to 80KByte of RAM and package options from 32 pins to 144 pins. ST provides a portfolio of Nucleo boards, Evaluation boards, and Discovery kits to aid evaluation of STM32L0 and STM32L1 families.