TDK Semiconductor Debuts 71M6511 Power Meter System-on-Chip

12/2/2004 - TDK Semiconductor Corp., a leader in the design and manufacture of mixed-signal semiconductors for world markets, unveiled a new member of its power meter system-on-chip (SoC) product line. The new TDK 71M6511 integrates a 21 bit delta-sigma converter with three sensor channels, 32-bit compute engine, MCU, RTC, LCD driver, and precision voltage reference and is ideal for tamper resistant residential time-of-use (TOU) and pre-payment metering.

“The 71M6511 mirrors many architectural features of our highly successful 71M6513 metering IC announced earlier this year and is optimized to address dynamic market trends facing residential meter manufacturers today. Wide dynamic range, unprecedented programmability, performance and memory options support various classes of residential meter designs intended for domestic and export markets worldwide,” according to Kourosh Boutorabi, product line manager for metering products.

Equipped with on-chip digital temperature compensation and TDK’s patent-pending Single Converter TechnologyTM, the device delivers superior linearity over 2000:1 current range, and under adverse environmental conditions. Requiring a single 3.3V capacitive supply circuit, the 71M6511 consumes less than 9 mA in mission and 4 micro Amps in battery backup modes, and it includes 64KB of FLASH, 7KB RAM, Real Time Clock (RTC), 5V LCD boost, 2+ UARTs, and an I²C interface.

Pricing for the new 71M6511 power meter IC starts at $2.60 in 10,000 unit quantities. The device can be produced in FLASH and ROM versions as well as 0.5% and 0.1% accuracy options and is now available for sampling in a 64-pin LQFP package. For further information contact TDK Semiconductor’s authorized distributors – Nu Horizons ( and All American ( in the US. Authorized distributors for other countries can be found by visiting the company’s web site at

About TDK Semiconductor Corp.
TDK Semiconductor, part of $6.2 billion TDK Corporation (NYSE: TDK), provides advanced analog and mixed-signal integrated circuit products for consumer, telecom, and industrial applications worldwide. Additional company and product information can be found at

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