The maximum clock frequency of the MSP430F5521IPNR is 25 MHz.
To use an external crystal oscillator, connect the crystal to the XIN and XOUT pins, and configure the UCS (Universal Clock System) module to use the external crystal oscillator as the clock source.
The maximum current consumption of the MSP430F5521IPNR is approximately 2.1 mA at 3V and 25°C, depending on the operating mode and clock frequency.
The MSP430F5521IPNR has a built-in temperature sensor that can be accessed through the ADC (Analog-to-Digital Converter) module. Configure the ADC to read the temperature sensor output, and use the resulting digital value to calculate the temperature.
No, the MSP430F5521IPNR is designed to operate at a maximum voltage of 3.6V. Using a 5V power supply may damage the device.