The QE family, comprised of a pin-compatible 8-bit and 32-bit device duo, is the first family in the Flexis series. The Flexis™ series of controllers is the connection point of the Freescale Controller Continuum, where 8- and 32-bit compatibility becomes reality, delivering the ultimate in migration flexibility.

The S08QE128 pushes the boundaries of the 8-bit architecture performance with 128Kb of Flash, 24 ADC channels and delivering up 25MHz in bus frequency.  The 32-bit MCF51QE128 is pin-, peripheral- and tool-compatible with the 8-bit S08QE128 device. They share a common set of peripherals and development tools delivering the ultimate in migration flexibility.

Features

• Up to 50 MHz CPU core /25 MHz bus speed
• 4 Kb/ 8 Kb/ 16 Kb/ 32 Kb/ 64 Kb/ 96 Kb/ 128 Kb flash memory
• 256/ 512/ 1 Kb/ 2 Kb/ 4 Kb/ 6 Kb/ 8 Kb random access memory (RAM)
• Loop-control oscillator
• Single-wire background debug interface (DBM)
• Fast start-up from Stop mode (6 µs)
• Flash programming from 1.8V to 3.6V
• Flexible Clock Modules
• Integrated Peripherials:
  • Up to 24-channel, Up to 12-bit Low-power ADC
  • Highly accurate internal clock (ICS)
  • Up to 2 Serial Communications Interface (SCI/UART)
  • Up to 2 Serial Peripheral Interface (SPI)
  • Up to 2 I²C
  • Up to 70 general-purpose input/output ports (GPIO)
  • 16 Keyboard Interrupt pins 
  • Pin compatibility in 32-, 44-, 64- and 80-pin LQFP packages

Low-power RUN and WAIT modes enable reduced current and reduced speed modes for peripherals