Renesas Electronics announced the release of the RL78/G1C group of microcontrollers (MCUs), said to be the industry’s first 16-bit MCUs that conform to the USB Battery Charging Specification, Revision 1.2, and provide USB host/function interfaces.
The battery charging function of the RL78/G1C conformance to USB BC 1.2 enables high-speed charging up to 1,5 A. Furthermore, Renesas claims that, by adopting the RL78 core, which features the lowest power consumption class in the industry, power consumption during USB operation is reduced by about 60%.
The USB interface is not only used between PCs and PC peripheral equipment, but is also used as a convenient general-purpose interface for consumer and industrial equipment in a wide range of areas such as smartphone accessories, portable healthcare devices, AV accessories, game equipment and industrial equipment.
Recently, the needs for charging from a USB terminal have been increasing. However, USB ports as defined in the earlier USB 2.0 standard could not use currents in excess of 500 mA and, as a result, cannot support high-speed charging. Thus support for the USB BC 1.2 standard, which allows currents of up to 1,5 A to be used, is strongly desired.
The first series within the RL78/G1C family will feature 32- to 48-pin devices in packages down to 5 x 5 mm, and up to 32 KB of Flash and 5,5 KB of onboard RAM. The devices also integrate a 1% accurate high-speed oscillator.
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