The maximum clock frequency of the MSP430G2001IPW14 is 16 MHz.
The MSP430G2001IPW14 has 2KB of flash memory.
Yes, the MSP430G2001IPW14 can operate at 3.3V, but it is recommended to use a voltage regulator to ensure stable operation.
No, the MSP430G2001IPW14 does not have built-in USB support. You would need to use an external USB controller or a different microcontroller with built-in USB support.