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Toshiba integrates two ARM core units in smart meter MCU

Posted: 20 Aug 2014 ?? ?Print Version ?Bookmark and Share

Keywords:smart meter? ARM? core? MCU?

Toshiba America Electronic Components, Inc. has started providing samples of its dual-core ARM-based microcontrollers that facilitates electric power calculation and communication in smart meters, as well as sensing and communications in other measurement devices.

The TMPM411F20XBG integrates an internal memory of 2048Kb Flash and 290Kb SRAM, 34-channel direct memory access, and 9-channel 12bit ADC in a 14mm x 14mm VFGBA193 package.

The MCU implements tamper detection and failure detection with very low power consumption. It also incorporates key security functions suitable for secure network communication, which include advanced encryption standard, secure hash algorithm and entropy source generator. Its large on-chip Flash memory allows for robust code and data storage as required for extensive service lifetime.

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The TMPM411F20XBG incorporates two units of ARM core to enable independent control of the measurement and communication units on one chip and reduce board space. Source: Toshiba

This effort embodies Toshiba's eagerness to capture a significant share of the expanding market for smart meter systems, where shipments surpassed 20.6 million units in March last year, according to IDC Energy Insights. Shipments in Asia Pacific were mostly responsible for this growth, going sky-high by 779.6 per cent year over year.

"As use of smart meters and other advanced sensing devices escalates, there is a need to reduce their overall form factor while increasing performance. One way to achieve this is to offer controllers that allow development of smaller products with greater functionality," said Jun Kawaguchi, senior business development manager, Mixed-Signal Business Unit at TAEC.

In integrating multiple functionalities, the TMPM411F20XBG achieves independent control of the electric power calculation and communication control in a single chip. This could significantly reduce the circuit board area, where a typical smart meter comprises separate controllers for electric power calculation, data communication, and output display.

Samples are available at US$15 each.

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