STMicroelectronics launches STM32 Ultra-Low-Power Microcontrollers
Written by Carol Brown
STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, has announced a new range of 32-bit general-purpose microcontrollers that will significantly extend battery life in a wide range of consumer, health, and industrial applications. The new STM32L0 ultra-low-power series features a 32MHz ARM® Cortex™ M0+ processor core, a 12-bit Analog-to-Digital Converter (ADC) that sets a new standard for low power consumption, and a USB FS 2.0 crystal-less solution.
With the ADC consuming just 40µA at a conversion speed of 100ksps, rising to just 200µA at 1.14Msps, in combination with the outstanding power efficiency of both the processor core and the ultra-low-power peripherals, applications such as fitness trackers and domestic smoke detectors powered by non-rechargeable batteries will require less frequent replacements, saving both end-user costs and the environmental burden of spent batteries. For example, an STM32L0-based fitness tracker powered by a non-rechargeable coin-cell battery could operate for up to two years before needing a new battery.
A second major benefit is that manufacturers will often be able to design equipment that uses smaller batteries, reducing the size and cost of products such as glucose meters and the rapidly growing range of portable health and fitness products. In addition, the new devices are fabricated in ST’s proprietary CMOS tech; nology that offers both embedded EEPROM, as well as the industry’s smallest variation in power consumption over the 25°C - 125°C temperature range, leading to record low consumption levels at elevated temperatures. This makes the STM32L0 microcontrollers particularly suitable for (distributed) industrial sensor applications relying on batteries or energy harvesting.
“The STM32L0 series is the latest fruit of ST’s constant quest to minimize power consumption in all electronic applications,” said Michel Buffa, General Manager, Microcontroller Division, STMicroelectronics. “This new standard-bearer enables customers to design more competitive products that will both bring immediate cost and convenience benefits to end-users and reduce worldwide consumption of disposable batteries.”
The STM32L0 series is offered in three lines: Access line, USB line, and USB/LCD line. Common features of all of the new devices include outstanding power consumption in several modes including 139 µA/MHz @ 32MHz, 87 µA/MHz using an optimized mode, and 400nA in Stop mode with full RAM retention and a 3.5µs wake-up time. The series also features up to 64KB of Flash memory, up to 8KB of SRAM, and 2KB of embedded true EEPROM. A built-in hardware oversampling capability also enables 16-bit ADC resolution. STM32L0 devices with integrated USB FS 2.0 interface support battery charger detection and link power management. Crystal-less operation of the USB is enabled via a built-in 48 MHz oscillator. All the lines offer built- in hardware engine encryption (AES) as an option.
As part of ST’s extensive STM32 family, the world’s most popular range of ARM-based microcontrollers, the STM32L0 devices benefit from the comprehensive STM32 development ecosystem. Moreover, the new devices are pin-to-pin compatible with STM32L1 or any other STM32 devices, enabling customers to rapidly upgrade designs to take advantage of the new power-saving opportunities.
Offered in UQFN32 (5x5mm), LQFP32 (7x7mm), LQFP48 (7x7mm), LQFP64 (10x10mm), and BGA64 (5x5mm) packages, the new devices are now available for sampling from US$0.85 (1,000 unit quantities), with volume production in Q2 2014.
ST is a global leader in the semiconductor market serving customers across the spectrum of sense and power and automotive products and embedded processing solutions. From energy management and savings to trust and data security, from healthcare and wellness to smart consumer devices, in the home, car and office, at work and at play, ST is found everywhere microelectronics make a positive and innovative contribution to people's life. By getting more from technology to get more from life, ST stands for life.augmented.
In 2013, the Company’s net revenues were $8.08 billion. Further information on ST can be found at www.st.com.
Skin Analytics wins NHSX award for AI skin cancer tool
An artificial intelligence-driven tool that identifies skin cancers has received an award from NHSX, the NHS England and Department of Health and Social Care's initiative to bring technology into the UK's national health system.
NHSX has granted the Artificial Intelligence in Health and Care Award to DERM, an AI solution that can identify 11 types of skin lesion.
Developed by Skin Analytics, DERM analyses images of skin lesions using algorithms. Within primary care, Skin Analytics will be used as an additional tool to help doctors with their decision making.
In secondary care, it enables AI telehealth hubs to support dermatologists with triage, directing patients to the right next step. This will help speed up diagnosis, and patients with benign skin lesions can be identified earlier, redirecting them away from dermatology departments that are at full capacity due to the COVID-19 backlog.
Cancer Research has called the impact of the pandemic on cancer services "devastating", with a 42% drop in the number of people starting cancer treatment after screening.
DERM is already in use at University Hospitals Birmingham and Mid and South Essex Health & Care Partnership, where it has led to a significant reduction in unnecessary referrals to hospital.
Now NHSX have granted it the Phase 4 AI in Health and Care Award, making DERM available to clinicians across the country. Overall this award makes £140 million available over four years to accelerate the use of artificial intelligence technologies which meet the aims of the NHS Long Term Plan.
Dr Lucy Thomas, Consultant Dermatologist at Chelsea & Westminster Hospital, said: “Skin Analytics’ receipt of this award is great news for the NHS and dermatology departments. It will allow us to gather real-world data to demonstrate the benefits of AI on patient pathways and workforce challenges.
"Like many services, dermatology has severe backlogs due to the COVID-19 pandemic. This award couldn't have come at a better time to aid recovery and give us more time with the patients most in need of our help.”