Texas Instruments launches a fully integrated system-on-chip for multiphase smart meters

A few days ago, as a leading innovator in smart grid energy management, communication and control, Texas Instruments announced the launch of 60 new fully integrated metering SoCs, which will be exhibited at DistribuTECH 2013. The MSP430F677x SoC can achieve accurate energy measurement and meets or exceeds the global regulations and standards of intelligent multi-phase electronic energy meters, including IEC 62053-22 and ANSI C12.20 level 0.2 standards. In addition, the large integrated memory of the MSP430F677x SoC facilitates more sophisticated metering functions, and the advanced tamper-proof protection enables utility companies to prevent electricity theft and alteration of electricity meters.

　　 In order to achieve the highest meter accuracy, MSP430F677x SoC uses an enhanced analog front end (AFE), and is equipped with 7 sets of 24-bit ΔΣ data converters, which can operate from -40°C to +85°C for the entire 2000:1 The input current range reaches the best accuracy among products of the same level. Using a single chip that integrates 512KB flash memory and 32KB SRAM memory, developers can combine more sophisticated metering functions, such as a dynamic price list calculated on a per-time basis, a large buffer of interval data, DLMS/COSEM in meter data format, and wired and wireless The communication stack of the communication protocol.

　　 In order to prevent utility companies from stealing electricity and altering electricity meters, MSP430F677x SoC has built-in multiple advanced anti-tampering protection functions. For example, the dedicated pins of a single-chip real-time frequency (RTC) can detect and time-stamp to prevent meter tampering. Therefore, utility companies can track, reduce, and prevent meter damage. In addition, the encryption time of the 128-bit hardware accelerated Advanced Encryption Standard (AES) module is faster than traditional software implementation, so it can improve the safety and performance of the meter and save power consumption.

　　 The new MSP430F677x SoC provides accompanying software to help accelerate development and achieve economical results through tying. The free MSP430? Energy Library program code can perform all multi-phase meter calculations for the energy and power required by ANSI/IEC specification meters, and can be used as a reference for customers to develop meter products.

　　 Additional features and advantages of MSP430F677x SoC:

　　The increased memory density helps developers use ZigBee, wM-Bus, PRIME, G3-PLC and RF mesh networks to connect to wired and wireless communication standards.

　　 6 groups of configurable serial communication peripherals can be combined with 4 UART ports, 6 SPI ports or 2 I2C ports, so it can be connected to a variety of wired communication standards.

　　 Integrated display driver supports 8-mux with 320 segment LCD controller, which can display more detailed content and expand language support.

　　128-bit hardware acceleration The encryption time of the AES module is faster than traditional software implementation, which helps protect wired and wireless communications.