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TI's MCUs extend battery life in co-processor designs

Posted: 06 Dec 2012     Print Version  Bookmark and Share

Keywords:MCU  coprocessor  microcontroller 

Texas Instruments Inc. (TI) unveils the MSP430F521x/F522x microcontroller family that boasts total power savings for co-processor designs.

These microcontrollers support a main supply rail (1.8V – 3.6V) and I/O supply rail (1.8V ±10 per cent), eliminating the need for level translators and offering system-level advantages such as reduced system cost and increased flexibility.

Featuring this new dual voltage rail capability, the F521x/F522x microcontrollers can operate as an ultra-low-power co-processor to higher power/performance devices such as TI's OMAP processor and Sitara platforms. For example, the MSP430 microcontrollers can be used to offload functions such as sensor hub, keyboard control, battery/power management, capacitive touch, haptics and proximity detection with lower power consumption compared to running these within an application processor. With a fast wake-up time at 3.5µs and as little as 1.4µA power consumption in standby mode, the F521x/F522x microcontrollers can extend battery life from hours to days, according to the company.

TI also offers F521x/F522x-based 9-axis sensor fusion solution that works with a wide range of popular sensors in the market, providing greater flexibility to developers and broadening the devices' reach in battery-operated mobile computing and health and fitness applications. Additionally, F521/F22x devices add support of the latest Windows 8 operating system human interface device (HID) over I2C protocol. Using this protocol offers significant power savings advantages compared to HID over USB in applications like sensor hub and keyboard control in tablets, ultrabooks and other Windows 8-based products.

MSP430F521x/F522x microcontrollers are compatible with MSP430Ware software so developers can access code examples to simplify development and speed time to market. Additionally, F521x/F522x microcontrollers are code compatible with all MSP430 devices for broader scalability across TI's MSP portfolio. Application notes are also available online for a 9-axis sensor fusion algorithm as well as keyboard controller with HID over USB.

The MCUs are available in multiple package sizes offering versatility with 48- and 64-pin QFN, 80-pin BGA options with up to 128k memory and a 3.5mmx3.5mm YFF package (available in 1Q13), enabling small footprint in portable computing applications.

MSP430F521x/F522x microcontrollers are priced from Rs.108.47 ($2.05) for 1K units and samples are immediately available. The MSP-TS430RGC64C target socket is now available for Rs.5,238.10 ($99). The MSP-FET430U64C target socket and UIF emulator is also now available for Rs.7,883.60 ($149) from TI's eStore.





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