The maximum clock frequency of the TM4C123GH6PMT7 is 80 MHz.
The pin muxing on the TM4C123GH6PMT7 can be configured using the Pin Mux Utility tool provided by Texas Instruments or by manually setting the registers according to the datasheet.
The power consumption of the TM4C123GH6PMT7 varies depending on the operating frequency and mode. In active mode, the typical current consumption is around 15mA at 80MHz, and in sleep mode, it is around 1.5mA.
The ADC on the TM4C123GH6PMT7 can be used by configuring the ADC module, selecting the input channel, and starting the conversion. The ADC result can be read from the ADC FIFO.
Yes, the TM4C123GH6PMT7 can be used with an external crystal oscillator. The external crystal oscillator can be connected to the XT1 and XT2 pins, and the internal oscillator can be disabled.