To help overcome a design hurdle that has burdened engineers for decades, Texas Instruments has developed Compute Through Power Loss (CTPL) technology to enable context save and restore across its MSP430 FRAM microcontroller (MCU) family, including the new MSP430FR6972.
This patent-pending technology enables instantaneous wakeup with intelligent system state restoration after an application unexpectedly loses power. In addition, the new MSP430FR6972 includes integrated smart analog and digital peripherals to reduce system cost, power and size. These features include a low-power segment LCD controller, a 12-bit differential analog-to-digital converter (ADC) with internal window comparator, and a 256-bit AES accelerator.
The ultra-low-power MCU with 64 KB of non-volatile FRAM highlights TI’s leading ULPBench scores for 16-bit MCUs and can be used for data logging to enable applications such as a wireless motor condition monitor. This system can be paired with the company’s bq25570 energy harvesting IC and SimpleLink multi-standard CC2650 wireless MCU to operate from a coin cell battery for decades.
Unified FRAM inside the MCU allows flexible memory use across data and application code – a very flexible solution for updates in the field. Fast write speeds, combined with 10 billion times more write-cycle endurance compared to traditional non-volatile memory, suits data logging applications. This technology simplifies code development because it does not require pre-erasure of segments and can be accessed at the bit-level, enabling constant on-the-fly data logging with zero extra power.
The integrated 116-segment LCD driver includes software-configurable LCD pins that enable quick and easy hardware layout; an integrated charge pump allows the LCD contrast level to be maintained even when the MCU is in low-power modes. Additional integration includes 52 capacitive-touch-enabled GPIO, five timers, comparator, real-time clock (RTC) counter and SPI, UART and I2C communications.
Inherent benefits of non-volatile FRAM, the integrated LCD controller and built-in security features make MSP430FR6972 ideal for smart flow and electricity metrology co-processing, building and factory automation, and blood glucose meter applications.
For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com
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