Solutions for 8/16bit embedded applications
08 March 2011
MCU family achieves 70uA/MHz and delivers 41 DMIPS at 32MHz.
The new RL78 family of extremely low power microcontrollers from Renesas Electronics (MCUs) integrates advanced features from both the R8C and the 78K (78K0, 78K0R) families to deliver lower power, enhanced performance, and higher integration, providing a robust migration path.
The new products are built around the new RL78 CPU core, which is based on the low-power, high-performance 78K0R CPU core, and incorporates an extensive range of powerful peripheral functions from the R8C and 78K families, making them ideal for a number of applications including battery-operated devices and household applications.
The new RL78 MCUs achieve the industry-leading low power consumption, with operating current of only 70 microamperes (μA)/megahertz (MHz) and standby current of 0.7 µA with the real-time clock (RTC) and low-voltage detection (LVD) functions active. The new family’s power-efficient design, based on a 130-nanometer process node, can deliver 41 Dhrystone million instructions per second (DMIPS) when operating at 32 MHz. Dhrystone is a program used to evaluate the operation performance of computers. The performance value of 41 DMIPS for the RL78 Family was measured using the Dhrystone 2.1 standard. The RL78 MCUs’ advanced process technology enables higher integration of on-chip components such as a 32MHz +/-1 percent on-chip oscillator, data flash with background operation supporting up to 1 million re-write cycles, and 1.6 to 5.5 volts operation.
”The new RL78 MCU family is designed to meet the market needs by providing the latest in low power technology, and feature-rich integration geared for 8bit applications,” said Shigeo Mizugaki, Senior Vice President, Renesas Electronics Corporation. “The great acceptance of the R8C and 78K families across multiple markets over the last few years is true evidence of Renesas Electronics’ commitment to the embedded community. The RL78 family not only combines key attributes from both of these families to offer the best migration path to current Renesas Electronics’ users, but it also introduces state-of-the-art features which enable the design of more innovative products. The new family’s native low power technology, high-component integration and extensive built-in safety mechanisms make them ideal for a number of applications including battery-operated devices and household appliances.”
The RL78 family will be comprised of general purpose and application-specific standard MCUs. The general purpose G series will include a total of 302 products in the RL78/G12 Group and RL78/G13 Group. The initial products will offer extensive scalability with 2KB to 512KB of program space and with package options ranging from 20 to 128-pins.
Mass production is scheduled to begin in July 2011 and is expected to reach a combined volume of 10 million units per month in 2012.
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