The key features of the F1680 will be discussed in the following several slides. This slide lists the keys features of the CPU and Memory which include the 20 MHz eZ8™ CPU, several sizes of Flash memory, 1 KB of Program RAM (PRAM) for ISR shadowing or additional Register RAM, 1 KB or 2 KB of Register RAM for Mathematic/logic operations or as data storage which can also be used to increase the size of the PRAM to 3 KB, and 128 Bytes or 256 Bytes of Non Volatile Data Storage (NVDS) for system data which provides EEPROM capability for applications that require E2PROM.