Key features
• 8-Bit S08 central processor unit (CPU)
   – Up to 20 MHz bus at 2.7 V to 5.5 V across
      temperature range of -40 °C to 105 °C
   – Supporting up to 40 interrupt/reset sources
   – Supporting up to four-level nested interrupt
   – On-chip memory
   – Up to 60 KB flash read/program/erase over full
      operating voltage and temperature
   – Up to 256 byte EEPROM; 2-byte erase sector;
      program and erase while executing flash
   – Up to 4096 byte random-access memory (RAM)
   – Flash and RAM access protection
• Power-saving modes
   – One low-power stop mode; reduced power wait
      mode
   – Peripheral clock enable register can disable
      clocks to unused modules, reducing currents;
      allows clocks to remain enabled to specific
      peripherals in stop3 mode
• Clocks
   – Oscillator (XOSC) - loop-controlled Pierce
      oscillator; crystal or ceramic resonator range of
      31.25 kHz to 39.0625 kHz or 4 MHz to 20 MHz
   – Internal clock source (ICS) - containing a
      frequency-locked-loop (FLL) controlled by
      internal or external reference; precision
      trimming of internal reference allowing 1%
      deviation across temperature range of 0 °C to
      70 °C and 2% deviation across temperature
      range of -40 °C to 105 °C; up to 20 MHz
• System protection
   – Watchdog with independent clock source
   – Low-voltage detection with reset or interrupt;
      selectable trip points
   – Illegal opcode detection with reset
   – Illegal address detection with reset
• Development support
   – Single-wire background debug interface
   – Breakpoint capability to allow three breakpoints
      setting during in-circuit debugging
   – On-chip in-circuit emulator (ICE) debug module
      containing two comparators and nine trigger
      modes
• Peripherals
   – ACMP - one analog comparator with both
      positive and negative inputs; separately
      selectable interrupt on rising and falling
      comparator output; filtering
   – ADC - 16-channel, 12-bit resolution; 2.5 µs
      conversion time; data buffers with optional
      watermark; automatic compare function;
      internal bandgap reference channel; operation
      in stop mode; optional hardware trigger
   – CRC - programmable cyclic redundancy check
      module
   – FTM - three flex timer modulators modules
      including one 6-channel and two 2-channel
      ones; 16-bit counter; each channel can be
      configured for input capture, output compare,
      edge- or center-aligned PWM mode
   – IIC - One inter-integrated circuit module; up to
      400 kbps; multi-master operation;
      programmable slave address; supporting
      broadcast mode and 10-bit addressing;
      supporting SMBUS and PMBUS
   – MTIM - Two modulo timers with 8-bit prescaler
      and overflow interrupt
   – RTC - 16-bit real timer counter (RTC)
   – SCI - three serial communication interface (SCI/
      UART) modules optional 13-bit break; full
      duplex non-return to zero (NRZ); LIN extension
      support
   – SPI - one 8-bit and one 16-bit serial peripheral
      interface (SPI) modules; full-duplex or single-wire
      bidirectional; master or slave mode
• Input/Output
   – 57 GPIOs including one output-only pin
   – Two 8-bit keyboard interrupt modules (KBI)
   – Two true open-drain output pins
   – Eight, ultra-high current sink pins supporting 20 mA source/sink current
• Package options
   – 64-pin LQFP; 64-pin QFP
   – 48-pin LQFP
   – 44-pin LQFP
   – 32-pin LQFP