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Ambiq Micro's Apollo microcontrollers redefine 'low power' with up to 10x reduction in energy consumption
Pioneering ARM® Cortex-M4F microcontrollers based on subthreshold voltage technology deliver breakthrough improvement in battery life
Austin, TX -- January 19, 2015 -- Ambiq Micro, a leader in ultra-low power integrated circuits, today announced the Apollo family of four 32-bit ARM® Cortex-M4F microcontrollers (MCUs). In real-world applications, their energy consumption is typically 5 to 10 times lower than that of MCUs of comparable performance, resulting in far longer battery life in wearable electronics and other battery-powered applications. The dramatic reduction in energy consumption is achieved using Ambiq’s patented Subthreshold Power Optimized Technology (SPOT) platform.
Wearable devices that might otherwise run for days or weeks on a battery can be designed, or redesigned, to function for months or years. Engineers can take advantage of the expanded power budget to add new features and functions that were not previously possible, or opt for smaller batteries, enabling them to create innovative packaging for their products to enhance consumer appeal.
Uniquely, Apollo MCUs optimize both active and sleep mode power. They consume an industry-leading 30µA/MHz when executing instructions from flash and feature average sleep mode currents as low as 100nA. This extremely low energy consumption does not compromise performance. The ARM® Cortex-M4F core, with its precision floating point unit, offers the computational horsepower required in an Internet of Things (IoT) world where algorithmic processing requirements are increasing due to the growing use of sensors, audio, and automation sources.
Highly integrated Apollo MCUs operate at up to 24MHz. They are available with up to 512kB of flash and 64kB of RAM to accommodate radio and sensor overhead in addition to application code. Communication with sensors, radios, other peripherals and an optional host processor is implemented via I2C/SPI ports and a UART. On-chip resources include a 10 bit, 13-channel, 1MS/s ADC and a temperature sensor with ±2ºC accuracy. Two compact packaging options are available – a 64-pin, 4.5 x 4.5mm BGA package with 50 GPIO and a further size-optimized 2.4 x 2.77mm, 42-pin CSP with 27 GPIO.
Ambiq Micro’s SPOT platform operates transistors at subthreshold voltages (less than 0.5V), rather than using transistors that are turned all the way “on” at 1.8V. It uses the leakage current of “off” transistors to compute in both digital and analog domains. The patented technology, implemented in an industry-standard CMOS process, has overcome the challenges of noise susceptibility, temperature sensitivity and process drift previously associated with subthreshold voltage switching. The company’s AM08x5 and AM18x5 families of ultra low power real time clocks, launched in 2013, are based on the same platform.
Ambiq Micro’s CEO and President, Mark Foley, said: “The energy efficiency of microcontrollers has been getting better over the last few years but nobody has delivered the near order-of-magnitude improvement made possible by our SPOT platform. The technology, proven in our real-time clocks over the last couple of years and now applied to Apollo MCUs, delivers the breakthrough in battery life that designers of portable devices have been demanding. Looking ahead, we predict that semiconductor energy consumption will be halved every two years. The trend starts here.”
Apollo MCUs are sampling to selected customers now. Volume production will commence in the spring of 2015 with prices from $1.50 each in 10K+ volumes.
About Ambiq Micro
Ambiq Micro was founded in 2010 on the simple yet powerful notion that extremely low power semiconductors are the key to the future of electronics. Through the use of pioneering ultra-low power technology, we help innovative companies around the world develop differentiated solutions that reduce or eliminate the need for batteries, lower overall system power, and maximize industrial design flexibility.
Ambiq Micro has developed breakthrough technology based on our patented Subthreshold Power Optimized Technology (SPOT™) platform that dramatically reduces the amount of power consumed by semiconductors thus making our integrated circuits (ICs) an ideal solution for energy critical applications.
Ambiq Micro is headquartered in Austin, Texas. For more information, visit http://www.ambiqmicro.com and follow us @Ambiq_Micro.
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