8-bit Flexis® AC128/96/60/48/32 MCUs

Product Details

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Block Diagram

Freescale S08AC Microcontroller Block Diagram

Freescale S08AC Microcontroller Block Diagram


Internal Clock Generator

  • Programmable frequency-locked loop(FLL) generates 8 MHz to 40 MHz
  • Provides multiple options for internal and external clock source and in-application clock switching
  • Trimmable with temperature and voltage compensation

10-bit Analog-to-Digital Converter

  • 10-bit Analog-to-Digital Converter
  • 2.5µs, 10-bit single conversion time

Timer with Ten Programmable Channels

  • Two 2-channes 16-bit timer systems
  • One 6-channel 16-bit timer systems
  • Programmable for input, capture, output compare or buffered pulse-width modulator (PWM)
    • PWM can be edge or center aligned

Extensive Serial Communications

  • Dual asynchronous SCIs
    • Flexible 13-bit module-based baud rate generators
    • LIN compatible
  • Inter-integrated circuit (I2C)
    • Up to 100 Kbps
    • Supports broadcasting mode and 10-bit addressing
  • Synchronous SPI
    • Multi-leader operation

System Protection

  • Selectable low-voltage detect/reset
  • COP watchdog timer
    • Option to run COP off independent clock source or bus
  • Cyclic redundancy check (CRC)


  • Up to 56 GPIO pins
    • Programmable pull-ups
    • High-current drivers
    • Controlled rise/fall times minimize noise

On-Chip Debug Interface

  • Single-wire background debug mode
  • Non-intrusive emulation
  • On-chip in-circuit emulator (ICE) debug module containing two comparators and nine trigger modes
  • View and change internal registers and memory while running an application


Quick reference to our documentation types.

1-5 of 79 documents

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Design Resources

Design Files

1 design file

  • Calculators

    S08 Battery Calculator


1-5 of 6 hardware offerings

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1-5 of 9 software files

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Note: For better experience, software downloads are recommended on desktop.

Engineering Services

4 engineering services

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