Renesas introduces 32-bit RX21A group of microcontrollers with large memory capacity and built-in A/D converter

Sep 07, 2012
Renesas Electronics RX21A Group of 32-Bit Microcontrollers for Smart Meters with Advanced Functionality

Renesas Electronics announced the RX21A Group of 32-bit microcontrollers (MCUs) for smart meters with advanced functionality. The new MCUs are the first in the industry to combine large flash memory capacity of 512 KB and a 24-bit delta-sigma (Delta-sigma) A/D converter for high-resolution measurement.

The RX21A Group of MCUs implements in a single chip functions that previously required separate devices, such as measurement, meter control, calculation of electricity charges, and data encryption. This reduces the number of external components required and helps to lower the overall cost. In addition, the RX21A Group includes product versions for a variety of meter models, allowing common and effective system design.

"As we continue to move toward a more society, "green" or "smart" solutions like smart meters will require innovative peripherals at the chip level which includes but is not limited to the high-precision analog, low and multiple connectivity options. In addition, customers would benefit from the unified set of peripheral drivers conforming to the ," said Ritesh Tyagi, Senior Director, Microcontroller Products & Solutions Marketing, Renesas Electronics America. "The new RX21A group of MCUs represents the latest example of how Renesas brings smart design to these growing markets, leveraging our low-power and advanced technology roots."

Recently, the smart meter market has expanded rapidly with the spread of smart grids as a way to increase energy efficiency. It is estimated that more than 100 million smart meters will be in operation by 2014. The proliferation of smart meters has created demand for MCUs that provide, in addition to reduced power consumption, higher performance to support advanced functions such as complex power calculation, needed for time-of-day rate systems and other diverse power services in many countries, and strong security, including communication data protection and unauthorized access prevention, in addition to reduced power consumption. There is also a greater need for shorter development cycles and improved development efficiency for new meter models, which spurs the need for an extensive lineup of MCUs supporting a wide range of smart meter models. At the same time, the home energy management system (HEMS) market is growing rapidly, driving the trend toward MCUs with enhanced functionality and larger .

Renesas already mass produces 8-bit and 16-bit MCUs with on-chip Delta-sigma A/D converters for use in power meters with power calculation and ordinary billing capabilities. The RX21A Group of MCUs expands the product lineups to further meet the market demands. Renesas now offers a full range of Delta-sigma A/D converter-equipped MCU product lineups, allowing designers to scale from the low-end to high-end more easily.

Explore further: ARM set to improve battery life for Internet of Things devices

Related Stories

World's First True Industrial Power Meter System-on-Chip

Aug 31, 2004

TDK Semiconductor Corp., a leader in the design and manufacture of mixed-signal semiconductors for world markets, today unveiled the world’s first true system-on-chip for industrial poly-phase power meters. ...

Recommended for you

OrangeSec pair said Cortana visited Android

6 hours ago

Can, did, Cortana work on Android? A talked-about act at droidcon 2015: a presentation titled "Cracking Cortana." The OrangeSec team arrived at the Turin, Italy, event to show their work in a CortanaProxy ...

DOJ, FBI acknowledge flawed testimony from unit

9 hours ago

The Justice Department and FBI have formally acknowledged that nearly every examiner in the FBI Laboratory's microscopic hair comparison unit gave flawed testimony in almost all trials in which they offered evidence against ...

Germany still has some way to go to 'smart factories'

9 hours ago

Collaborative robots and intelligent machinery may have wowed the crowds at this year's Hannover Messe, but experts see German industry as having some way to go towards incorporating them on factory floors ...

Quantum dot TVs are unveiled at China tech expo

21 hours ago

At this month's China Information Technology Expo (CITE) event, a headline-maker was the launch of quantum dot televisions, by QD Vision and Konka, the consumer electronics company. QD Vision's calling card ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.