The analog to digital converter on this new family has also been improved. It is much lower power than the previous version, about 10x lower than the ADC10 on the MSP430F2xx family. The speed remains the same at up to 200 KSPS. The device also supports its own unique reference voltage, selectable at 1.5, 2 or 2.5 volts. Similar to previous versions, it has 14 channels, two of which, however, are only usable internally for battery voltage monitoring and temperature sensing. In this new version, the Direct Transfer Controller (DTC) that was used to send read values directly to memory has been replaced by the DMA; this is much more flexible and can send the values to more places on the device to support quick operation without CPU intervention. One of the other major improvements has been the inclusion of the window comparator into the A/D. This allows the user to set different high, low, and middle thresholds to generate interrupts.