MSP430F5131IDAR datasheet by Texas Instruments

MSP430F5131IDAR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the MSP430F5131IDAR?
  The maximum clock frequency for the MSP430F5131IDAR is 25 MHz, but it can be overclocked up to 30 MHz with reduced voltage and temperature range.
• How do I configure the MSP430F5131IDAR to use an external crystal oscillator?
  To use an external crystal oscillator, set the XT2OFF bit in the FLLUNLOCK register to 0, and configure the XT2 pins as inputs. Then, connect the crystal oscillator to the XT2 pins and set the MCLK frequency to the desired value using the CSCTLx registers.
• What is the minimum voltage required for the MSP430F5131IDAR to operate?
  The minimum voltage required for the MSP430F5131IDAR to operate is 1.8V, but it can operate down to 1.6V with reduced frequency and performance.
• How do I use the built-in temperature sensor on the MSP430F5131IDAR?
  The built-in temperature sensor on the MSP430F5131IDAR is a 10-bit analog-to-digital converter (ADC) that can be accessed through the ADC10 module. Configure the ADC10 module to read the temperature sensor channel, and then use the ADC10MEM register to read the temperature value.
• Can I use the MSP430F5131IDAR with a 5V power supply?
  No, the MSP430F5131IDAR is not 5V tolerant and should only be used with a power supply between 1.8V and 3.6V. Using a 5V power supply can damage the device.