The maximum operating frequency of the CC430F5123IRGZT is 24 MHz.
To configure the CC430F5123IRGZT for low power consumption, you can use the device's power modes, such as LPM3 or LPM4, which can reduce power consumption to as low as 1.1 μA. You can also use the device's built-in low-power peripherals, such as the low-power oscillator and the low-power UART.
Yes, the CC430F5123IRGZT can be used with an external crystal oscillator. The device has an internal oscillator that can be used as a clock source, but you can also use an external crystal oscillator for more accurate timing.
The CC430F5123IRGZT can be programmed using the IAR Embedded Workbench or the Code Composer Studio (CCS) integrated development environment (IDE) from Texas Instruments. You can also use the device's built-in bootloader to program the device wirelessly using a PC or a mobile device.
The range of the CC430F5123IRGZT's wireless communication depends on the environment and the antenna used. In general, the device can achieve a range of up to 100 meters (330 feet) in open air, but this can be affected by obstacles, interference, and other factors.