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

   – Up to 8 KB flash memory read/program/erase over full operating voltage and temperature

   – Up to 512 bytes 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

   – Low power run

   – Low power wait

   – 6 μs typical wakeup time from stop3 mode

   – Typical stop current of 250 nA at 3 V, 25 °C

• Clock Source Options

   – Oscillator (XOSC) — Very low-power, 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 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 — 8-channel, 12-bit resolution; 2.5 μs conversion time; automatic compare function; 1.7 mV/°C temperature sensor; 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; operation in stop3

   – 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 optional prescaler

   – RTC — (Real-time counter) 8-bit modulo counter with binary or decimal based prescaler; external clock source for precise time base, time-of-day, calendar or task scheduling functions; free running on-chip low power oscillator (1 kHz) for cyclic wakeup without external components; runs in all MCU modes

   – SCI — Full duplex non-return to zero (NRZ); LIN master extended break generation; LIN slave extended break detection; wakeup on active edge

   – KBI — 8-pin keyboard interrupt with selectable edge

and level detection modes

• Input/Output

   – 22 GPIOs and one input-only 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

   – 28-pin SOIC, 24-pin QFN, 16-pin TSSOP