NXP recently released the LPC54100 Series MCUs which offer crucially improved ultra-low power performance for “always-on” processing devices often found in wearable technology.
Wearable technology is booming… at least it should considered the many devices available on the market. The fact that the hype is big but the numbers of wearables sold is not keeping up with expectations nor with the ones of smartphones has two main reasons: battery life and pricing.
The dominant bottle neck for the success of wearables on the long run is still the battery life. During the 2014 Wearable Tech Expo in New York City this July, Myriam Joire, chief evangelist at smartwatch startup Pebble, stated the “Battery is the number one challenge with wearables today. Most smartwatches take a 130-miliamp battery, which can be sucked dry with a big lightbulb in probably 30 minutes to an hour.” (source: Mashable).IMAGE: MASHABLE CHRISTINA ASCANI
This challenge can be addressed in two ways; one is to find a solution for more efficient and compact batteries, the other is to optimise the efficiency of the system in order to consume less power and extend the battery life.
With patented, market-proven architectural innovations, the NXP LPC54100 MCU series achieves unmatched power efficiency and consumes an average of 20 percent less power than its closest competitors making it a great choice for developers of wearable devices.
Crucial for always-on applications, the LPC54100 series requires as little as 3µA for continuous sensor listening. A first for sensor applications, its asymmetric dual-core architecture enables scalable active power/performance that enables developers to optimize power efficiency by using the 55 µA/MHz Cortex-M0+ core for sensor data collection, aggregation, and external communications, or the Cortex-M4F core (100 µA/MHz) to execute math-intensive algorithms (i.e., motion sensor fusion) more quickly while saving power.
The new MCU’s benefits can also score in other applications which use a lot of sensors such as robotics, gaming/entertainment, medical and various industrial devices.