The MCF51EM256 series microcontrollers are systems-on-chips (SoCs) that are based on the V1 ColdFire core and the following features: Operate at processor core speeds up to 50.33 MHz, Up to 256 KB
MCF51EM256 Series ColdFire<sup>®</sup> ® Integrated Microcontroller - Reference Manual
The MCF51EM256 series microcontrollers are systems-on-chips (SoCs) that are based on the V1 ColdFire core and the following features: Operate at processor core speeds up to 50.33 MHz, Up to 256 KB