MCF5221X Family features an integrated USB On-The-Go (OTG) and a wide variety of serial interface offerings (up to three UARTS, one SPI, two I2C) which makes it ideal to develop applications requiring device or host USB plus easy connection to other systems.
MCF5221X Family is based on the popular low cost, low power Version 2 ColdFire Core (up to 80MHz and 76 MIPS performance @ 3.3V CPU). MCF521xx Family  offers the same features but the USB OTG module, in case it is not needed .

Features

• Freq (MHz): 66,80
• MIPS @ Max freq: 76
• SRAM: 16,32
• Flash: 128, 256.
• PTI: 2
• GPIO: 33, 44, 55.
• Timer:
  • 8 channels - 8 bit ( PWM Timers)
  • 4 channels - 16 bit (General Purpose Timers)
  • 2 channels - 16 bit (Periodic Interrupt Timers)
  • 4 channels - 32 bit (w/DMA ctrl)

Target Applications

• HVAC building and control systems
• Medical instrumentation and monitors
• Fire/security control and monitoring systems
• Measurement equipment
• Hand-held medical/industrial applications
• Lighting control
• Industrial instrumentation
• Consumer Electronics
• Low Power industrial applications