The New RL78/G1C Group Microcontrollers Integrate USB Host/Function and BC 1.2 Conformity whilst Reducing System Power Consumption by Up to 60%.
Renesas Electronics announced the release of the RL78/G1C Group of microcontrollers (MCUs), which are 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 new RL78/G1C conforms to the USB BC 1.2 standard, which enables high speed charging up to 1.5 A. Furthermore, 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 Group of MCUs will feature 32 to 48-pin devices in packages down to 5 × 5 mm, and up to 32 KB of flash and 5.5 KB of on-board RAM. The RL78/G1C also integrates a 1% accurate high-speed oscillator.
Key Features of the RL78/G1C Group of MCUs:
- Industry’s first USB BC 1.2 compliance enables high-speed charging and power supply control while performing USB communication
- Extremely low power consumption achieved by the adoption of the RL78 Family
- RL78 24MHz (31MIPS) core
- Inclusion of USB host functionality allows support of a wide range of applications
- Member of the extensive RL78 Family with USB capability
- 2.4V to 5.5V operation
Availability
Samples of the RL78/G1C Group of MCUs are available now. Mass production of the RL78/G1C devices is scheduled to begin in March 2013 and is expected to reach a scale of 1,000,000 units per month in March 2014.
