Existing backers ARM, Mercury Fund and Huron River Ventures also participated.
Ambiq’s technology enables semiconductor products to run at extremely low voltage levels inside the chip, which significantly reduces the power required for chip operation.
Its SPOT technology can be applied to a wide range of semiconductors used in battery-life critical applications, such as the emerging wearable computing market, smart watches and wireless sensors.
The company will use the funding to expand its SPOT design platform, step up product development efforts and increase its international presence.
Austin Ventures partner Clark Jernigan said, “Austin Ventures expects Ambiq Micro products to have a major impact in many high-growth applications.
“Long life will be the driving factor behind consumer acceptance of new networked, battery-operated devices. Ambiq Micro is forging a path to change the market. We are very excited to join its investor group.”
Other businesses backed by Austin Ventures include low-power data centre provider Calxeda, which raised a $55m round in october last year.
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