Renesas launches new MCU group

Renesas Electronics new low-power MCUThe European subsidiary of Japanese microcontroller supplier Renesas Electronics has launched a new solution that offers low-power consumption and integration of analog function in sensing applications.

Renesas unveiled the RL78/I1D Group of microcontrollers this week, which the company claims are the industry’s lowest power consuming MCUs having cut electricity use in standby mode by just under a third for home and industrial sensing systems.

The company said it can achieve this by ensuring that functions such as the data transfer controller, event link controller, and data operation circuit perform data processing and transfer, and implement long-interval timers, without the need for CPU intervention, helps to reduce power consumption during intermittent system operation, making a contribution to the overall power efficiency of the system.

The RL78/I1D Group also integrates analog functions usable in various sensing applications to monitor for smoke, gas, and motion or vibrations, by picking up on minute variations in output.

MCU integration design

Renesas also said the company reduced the cost and compactness of the new RL78/I1D Group by integrating general-purpose differential input operational amplifiers, a 12-bit A/D converter, and a comparator.

This brings together on a single chip all the analog peripheral functions required to interface with sensors.

The RL78/I1D Group comprises 13 product versions with package pin counts ranging from 20 to 48 pins and on-chip flash memory capacities of 8, 16, and 32 kilobytes (KB).

Renesas has started mass production on the new MCU group and expects to reach a combined volume of 400,000 units per month by December 2015.