Freescale 68HC12
The 68HC12 (6812 or HC12 for short) is a microcontroller family from Freescale Semiconductor with an 8-bit ALU and 16-bit linear addressing. Originally introduced in the mid 1990s, the architecture is an enhancement of the Freescale 68HC11. Programs written for the HC11 are usually compatible with the HC12, which has a few extra instructions. The first 68HC12 derivatives had a maximum bus speed of 8MHz and flash memory sizes up to 128 kB.
Read more about Freescale 68HC12: Architecture of The 68HC12, HCS12/MC9S12 Derivatives, MC9S12X Derivatives, XGATE