The maximum clock frequency of the MSP430F1611 is 8 MHz.
To configure the MSP430F1611 for low power consumption, use the low-power modes (LPM3 or LPM4) and adjust the clock frequency, disable unused peripherals, and use the built-in brown-out reset (BOR) to reduce power consumption.
Yes, the MSP430F1611 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 MSP430F1611 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) debugger.
The MSP430F1611 has 55KB of flash memory available for program storage.