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SoC supports 80-segment LCD displays

Posted: 29 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:single-phase energy meter IC? MCU? flash memory?


austriamicrosystems has introduced the AS8267, a single-phase energy meter IC providing security protected on-chip data and program memory with the most reliable data retention specification over an extreme temperature range.

The AS8267 energy metering IC includes precision front-end for accurate measurement of all metering parameters. The embedded logic and MCU enable easy and versatile customization to the user's requirements. All anti-tamper measures are integrated in the AS8267 and any attempts of fraud are monitored. Embedded features like LCD drivers, temperature sensor and real-time clock keep the list of external components to the minimum.

The AS8267 supports up to 80-segment LCD display and incorporates an 8bit MCU, 32Kbytes of on-chip flash memory and nine programmable multi-purpose I/Os. The AS8267's two universal asynchronous receiver transmitters (UARTs) allow for external communication. A programmable energy LED pulse output is generated on-chip, enabling fast automatic digital calibration. An on-chip temperature sensor and real-time clock are also provided. An additional serial interface allows connection of an optional external EEPROM.

"Our embedded Flash technology, used in the AS8267, meets the highest requirements related to retention of data for metering application program and data," says Matjaz Novak, marketing director, industry and medical at austriamicrosystems. "In addition, our memory content security feature allows our customers to fully protect their software investment while providing a highly reliable hardware platform for metering applications."

The AS8267 SoC is available in a LQFP-64 pin package and is pin compatible with the currently available AS8268, AS8218 and AS8228 ICs.

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