Features:
• 8-bit HCS08 Central Processor Unit (CPU)
   – Up to 20 MHz CPU at 3.6 V to 1.8 V 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
   – 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 very low power stop modes
   – Peripheral clock enable register can disable clocks to unused modules, thereby reducing currents
   – Very low power real time counter for use in run, wait, and stop modes with internal clock sources
• Clock Source Options
   – Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked-loop (FLL) controlled by internal reference; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supports bus frequencies from 1 MHz 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 detection with reset or interrupt
   – Selectable trip points
   – Illegal opcode detection with reset
   – 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
• Peripherals
   – ADC — 4-channel, 10-bit resolution; 1.7 mV/°C temperature sensor; automatic compare function; internal bandgap reference channel; operation in stop3; fully functional from 3.6 V to 1.8 V
   – ACMP — Analog comparator with selectable interrupt on rising, falling, or either edge of comparator output; compare option to fixed internal bandgap reference voltage; output can be tied internally to TPM input capture
   – TPM — One 1-channel timer/pulse-width modulator (TPM) module; selectable input capture, output compare, or buffered edge- or center-aligned PWM on each channel; ACMP output can be tied internally to input capture
   – MTIM — 8-bit modulo timer module with 8-bit prescaler
   – KBI — 4-pin keyboard interrupt module with software selectable polarity on edge or edge/level modes
• Input/Output
   – Four GPIOs, one input-only pin and one output-only pin.
   – Hysteresis and configurable pullup device on all input pins; configurable slew rate and drive strength on all output pins except PTA5
• Package Options
   – 8-pin SOIC, PDIP, and DFN