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The MSP430F4xx family now provides twice the processing performance (16MHz versus 8MHz) in terms of maximum CPU clock speed at half the stand-by power consumption compared to MSP430F1xx and devices. In addition, the F4xx family incorporates a variety of features including zero power brown-out reset (BOR) protection on all devices, lower power, and low voltage flash programming. An onboard LCD controller (up to 160 segments) caters to portable applications. The features of the F4xx family reduce overall system cost and improve reliability. The improved digitally controlled oscillator (DCO) has greater stability over temperature and voltage allowing, in most applications, the elimination of an external crystal. Also, all port pins now have programmable pull-up/pull-down resistors which eliminates even more external components. Additionally, these devices can be hack proof since the improved bootstrap loader includes the option of invalid passwords erasing the device. The F4xx family of devices offers many features and improvements, but shares the same CPU and instruction set as all MSP430’s so that existing code can be completely reused.
