The maximum clock frequency that can be used with the MSP430F2013 is 16 MHz, but it can be overclocked up to 20 MHz with reduced voltage and temperature range.
To configure the MSP430F2013 to use an external crystal oscillator, you need to connect the crystal to the XIN and XOUT pins, and then configure the UCSCTL6 register to select the external crystal oscillator as the clock source.
The minimum voltage required to program the MSP430F2013 is 2.2V, but it is recommended to use a voltage of at least 2.5V to ensure reliable programming.
Yes, the MSP430F2013 can be used with a 3.3V power supply, but you need to ensure that the voltage regulator is capable of providing a stable 3.3V output, and that the device is operated within the recommended operating conditions.
To implement a low-power mode on the MSP430F2013, you can use the LPMx bits in the SR register to select one of the five low-power modes (LPM0 to LPM4), which can reduce the power consumption of the device to as low as 0.1 μA.
MSP430F2013TRSAR datasheet
by Texas Instruments
