Features
• 8-Bit HCS08 Central Processor Unit (CPU)
   – Up to 20-MHz CPU at 3.6V to 1.8V across temperature range of -40°C to 85°C
   – HC08 instruction set with added BGND instruction
   – Support for up to 32 interrupt/reset sources
• On-Chip Memory
   – Dual Array FLASH read/program/erase over full operating voltage and temperature
   – Random-access memory (RAM)
   – Security circuitry to prevent unauthorized access to RAM and FLASH contents
• Power-Saving Modes
   – Two low power stop modes
   – Reduced power wait mode
   – Low power run and wait modes allow peripherals to run while voltage regulator is in standby
   – Peripheral clock gating register can disable clocks to unused modules, thereby reducing currents.
   – Very low power external oscillator that can be used in stop2 or stop3 modes to provide accurate clock source to real time counter
   – 6 usec typical wake up time from stop3 mode
• Clock Source Options
   – Oscillator (XOSC) — Loop-control Pierce oscillator; Crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz
   – Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked-loop (FLL) controlled by internal or external reference; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supports bus frequencies from 1MHz to 10 MHz.
• System Protection
   – Watchdog computer operating properly (COP) reset with option to run from dedicated 1-kHz internal clock source or bus clock
   – Low-Voltage Warning with interrupt
   – Low-Voltage Detection with reset or interrupt
   – Illegal opcode and illegal address detection with reset
   – Flash block protection
• Development Support
   – Single-wire background debug interface
   – Breakpoint capability to allow single breakpoint setting during in-circuit debugging (plus two more breakpoints in on-chip debug module)
• Input/Output
   – 38 GPIOs, 2 output-only pins
   – 8 KBI interrupts with selectable polarity
   – Hysteresis and configurable pull up device on all input pins; Configurable slew rate and drive strength on all output pins.
• Package Options
   – 64-LQFP, 48-LQFP and 48-QFN