MSP430F435IPNR datasheet by Texas Instruments

MSP430F435IPNR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the MSP430F435IPNR?
  The maximum operating frequency of the MSP430F435IPNR is 8 MHz, but it can be overclocked to 12 MHz with reduced voltage and temperature range.
• How do I configure the MSP430F435IPNR 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 correct frequency range in the FLL_CTL0 register.
• What is the minimum voltage required for the MSP430F435IPNR to retain data in its flash memory?
  The MSP430F435IPNR requires a minimum voltage of 2.2V to retain data in its flash memory. Below this voltage, data may be lost.
• Can I use the MSP430F435IPNR in a 3.3V system?
  Yes, the MSP430F435IPNR is compatible with 3.3V systems, but it requires a voltage regulator to step down the voltage to the recommended operating range of 1.8V to 3.6V.
• How do I implement a watchdog timer on the MSP430F435IPNR?
  The MSP430F435IPNR has a built-in watchdog timer that can be enabled by setting the WDTCTL register. The watchdog timer can be configured to reset the device or trigger an interrupt if it is not serviced within a specified time period.