The maximum clock frequency of the MSP430F149IPAG is 8 MHz.
The MSP430F149IPAG has 60 KB of flash memory.
Yes, the MSP430F149IPAG can operate at 3.3V, but it is also compatible with 5V systems.
No, the MSP430F149IPAG does not have built-in USB support. However, it can be used with external USB controllers.
The power consumption of the MSP430F149IPAG varies depending on the operating mode, but it can be as low as 1.4 μA/MHz in active mode and 0.1 μA in standby mode.
MSP430F149IPAG datasheet
by Texas Instruments
