The maximum clock frequency of the MSP430F149IPMRG4 is 8 MHz.
To configure the MSP430F149IPMRG4 for low power consumption, use the low-power modes (LPM3 or LPM4) and adjust the clock frequency, disable unnecessary peripherals, and use the built-in power management features.
Yes, the MSP430F149IPMRG4 can operate with a 3.3V power supply, but it is recommended to use a 2.2V to 3.6V power supply for optimal performance.
The MSP430F149IPMRG4 can be programmed using the Texas Instruments Code Composer Studio (CCS) or IAR Embedded Workbench development environments, or using the MSP430 Flash Emulation Tool (FET).
The MSP430F149IPMRG4 has 60 KB of flash memory available for program storage.