New ultra-low-power devices offer enhanced LCD display, high precision measurements and advanced metrology software support
Offering developers more flexibility in electricity metering and energy monitoring applications, Texas Instruments Incorporated announced the MSP430F673x/F672x family of ultra-low-power 16-bit microcontrollers. TI's new devices guarantee no interruption of operation through a backup capable microcontroller supporting real-time clock (RTC) operation and power management from the main power supply and up to two separate auxiliary supplies. The 24 new F673x/F672x devices also achieve more precise measurements through an increased sampling rate and superior linearity over multiple operating conditions, such as current range and time, resulting in a stable system solution. These devices are TI's first 6xx series microcontrollers with integrated 24-bit sigma-deltas and a 320-segment LCD controller. Compared to the previous 160-segment solution, developers can leverage enhanced segmented LCDs with more programmability and enable more characters on displays, especially with Asian languages. As part of the MSP430 microcontroller portfolio, the F673x/F672x devices are designed for ultra-low-power modes, ensuring the LCD display is consuming as little power as possible during operation.
MSP430F673x/F672x microcontrollers' tools and software for simplified development
TI's free MSP430 Energy Library is available to support metrology software on the new F673x/F672x devices, providing an easy startup for customers developing a utility meter product. Developers can test and experience accuracy results with the MSP430F6736 EVM, a single-phase electricity meter as well as program and debug F673x/F672x devices with the MSP-TS430PZ100B target board and MSP-FET430U100B flash emulation tool.
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| EVM430-F6736 - MSP430F6736 EVM for Metering |
Key features and benefits of the MSP430F673x/F672x family
- Powerful 24-bit sigma-delta with programmable gain amplifier and less than 0.1 percent accuracy across a 2400:1 dynamic range enables the F673x/F672x family to meet class 0.1 meters and exceed IEC62053/ANSI C12.20
- Sigma-delta converter offers independent channels for voltage, current and tamper detection, reducing energy measurement software development and security concerns
- 320-seg LCD driver, which enables segment and blinking control and dual display memory, can also run in 8-MUX mode to support multiple LCD devices
- Real-time clock and calendar mode operates from separate voltage supply with programmable charger for accurate data logging and measurements with no loss of data
- Ultra-low power consumption at 1.4 µA in standby mode with ultra-fast wake up at less than 3 µs
- MSP430 electricity metering selection tool provides an easy way for developers to find the right product for their applications.
- Free MSP430 Energy Library supports metrology software measurements, such as voltage, energy and tamper detection
Pricing and availability
The MSP430F673x/F672x microcontrollers are immediately available, starting at $2.00 for 1K-units. The MSP-TS430PZ100B target board is available for $75 and the MSP-FET430U100B flash emulation tool is available for $149.
