HCS12/MC9S12 Derivatives
Beginning in 2000 the family was extended with the introduction of the MC9S12 derivatives which have bus speeds of up to 25 MHz and flash sizes up to 512 kB.
The MC9S12NE64 was introduced by Freescale in September 2004, claiming to be the "industry's first single-chip fast-Ethernet Flash microcontroller." It features a 25 MHz HCS12 CPU, 64 kB of FLASH EEPROM, 8 kB of RAM, and an Ethernet 10/100 Mbit/s controller.
Read more about this topic: Freescale 68HC12