May 2016 - It can be obtained from Mouser Electronics new microcontrollers from Texas MSP430 series with ultra-low power characteristics based on FRAM and designed for applications on touch keyboards, BSW and proximity applications. The architecture is 16-bit RISC and they have a standby current of only 1.7 µA. See more at: http://www.mouser.com/new/Texas-Instruments/ti-msp430fr263x-msp430fr253x/
