32-bit MCU'er er målrettet til sensorer og healthcare applikationer

Renesas Electronics nye RX231 serie af microcontrollere tilbyder høj powereffektivitet og integrerer avancerede faciliteter til digital filtrering (in english).

The RX231 Group is ideal for applications that require high processing performance in environments with low current supply capacity, such as industrial sensors, healthcare devices, and wearable devices, and building automation devices such as thermostats.

With industrial sensors and healthcare devices, processing can be time consuming and inefficient. Batteries for these types of systems are designed to support low current supply capacity, but during signal measurement, they must handle high processing loads, such as eliminating noise from digital signals and performing floating-point calculations. As the current consumption cannot be increased, designers cannot boost the processing speed by raising the operating frequency of the CPU. The long processing durations cause increased power loss for the entire system.

The new RX231 Group provides an optimal combination of power-efficient MCU technology and the high-performance RXv2 CPU core with powerful DSP/FPU operation capabilities. It minimizes current consumption and handles tasks involving heavy calculation loads such as digital filtering (Note 1) and floating-point operations considerably fast. This makes it possible to substantially reduce the power loss for the system as a whole during processing.

For example, running the Renesas IIR digital filter consumes 10 percent less power and takes about half as long as was the case with earlier products. In addition, current consumption during standby is only 0.8 μA, approximately half the level of previous generations. With these top-class power performances, power efficiency is approximately doubled during intermittent operation, in which operating and standby states alternate. This allows extended operation on battery power.