Texas Instruments (TI) announced three-phase metering systems-on-chip (SoC) for smart electricity meters and portable measurement applications. The new MSP430F67641 SoCs include high-performance delta-sigma analog-to-digital converters (ADCs) for energy measurement products requiring high accuracy across a wide dynamic range. An integrated 320-segment LCD eliminates the need for external drivers and enables developers to create the next generation of smart energy measurement devices with detailed displays and extended language support, while still maintaining low-power consumption in sleep mode.
In addition, the new MSP430F6779A metering SoCs include advanced security and electrostatic discharge (ESD) features. A 128-bit Advanced Encryption Standard (AES) hardware-accelerated module speeds encryption time, improves meter security and performance. With more flash memory integrated on-chip, smart grid developers can incorporate more sophisticated metering features like multi-dwelling dynamic pricing, large buffers for interval data, DLMS/COSEM for meter data formatting, and communication stacks for both wired and wireless protocols.
Developers will also benefit from TI's TPS54060 step-down converter that provides a regulated DC supply of 3.3 V with low quiescent current to ensure full-speed operation of the MSP430F67641 and MSP430F6779A devices
TI's MSP430F67641 SoCs are available immediately for USD $2.85 in 1K units. Additionally, several development kits are available for engineers to kick start their development, including the MSP-TS430PEU128 programming and debug board ($117), MSP-FET430U128 flash emulation tool ($175), EVM430-F67641 evaluation module ($299). The MSP430F6779A metering SoCs are available immediately for USD $6.90 in 1K units with the EVM430-F6779 evaluation module for USD $299.