MSP430F5131IRSBR datasheet by Texas Instruments

MSP430F5131IRSBR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the MSP430F5131IRSBR?
  The maximum clock frequency for the MSP430F5131IRSBR is 25 MHz, but it can be overclocked up to 30 MHz with reduced voltage and temperature range.
• How do I configure the MSP430F5131IRSBR for low-power operation?
  To configure the MSP430F5131IRSBR for low-power operation, use the LPMx modes (LPM0 to LPM4) which can be set using the _BIS and _IE registers. Additionally, disable unused peripherals, use the low-power oscillator, and adjust the clock frequency to minimize power consumption.
• Can I use the MSP430F5131IRSBR with a 3.3V power supply?
  Yes, the MSP430F5131IRSBR can operate with a 3.3V power supply, but the maximum clock frequency is limited to 20 MHz. For 25 MHz operation, a 2.2V to 3.6V power supply is required.
• How do I implement a watchdog timer on the MSP430F5131IRSBR?
  The MSP430F5131IRSBR has a built-in watchdog timer (WDT) that can be enabled and configured using the WDTCTL register. The WDT can be set to timeout periods ranging from 32 ms to 8192 ms.
• What is the maximum current that can be sourced or sunk by the MSP430F5131IRSBR's GPIO pins?
  The maximum current that can be sourced or sunk by the MSP430F5131IRSBR's GPIO pins is 4 mA per pin, with a total current limit of 30 mA for all GPIO pins combined.