8-Bit HCS08 Central Processor Unit (CPU)
• 20-MHz HCS08 CPU (central processor unit)
• HC08 instruction set with added BGND instruction
• Background debugging system
• Breakpoint capability to allow single breakpoint
setting during in-circuit debugging (plus two more breakpoints in on-chip debug module)
• Debug module containing two comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow addresses and event-only data Debug module supports both tag and force breakpoints
• Support for up to 32 interrupt/reset sources
Memory Options
• FLASH read/program/erase over full operating voltage and temperature
• MC9S08QG8 — 8 Kbytes FLASH, 512 bytes RAM MC9S08QG4 — 4 Kbytes FLASH, 256 bytes RAM
Power-Saving Modes
• Wait plus three stops
Clock Source Options
• 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 1 MHz to 10 MHz
• XOSC — Low-power oscillator module with software selectable crystal or ceramic resonator range, 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz, and supports external clock source input up to
20 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
• Illegal opcode detection with reset
• Illegal address detection with reset
• FLASH block protect
Peripherals
• ADC — 8-channel, 10-bit analog-to-digital converter with automatic compare function, asynchronous clock source, temperature sensor, and internal bandgap reference channel; ADC is hardware triggerable using the RTI counter
• ACMP — Analog comparator module with option to compare to internal reference; output can be optionally routed to TPM module
• SCI — Serial communications interface module with option for 13-bit break capabilities
• SPI — Serial peripheral interface module
• IIC — Inter-integrated circuit bus module
• TPM— 2-channel timer/pulse-width modulator;
each channel can be used for input capture, output compare, buffered edge-aligned PWM, or buffered center-aligned PWM
• MTIM — 8-bit modulo timer module with 8-bit prescaler
• KBI — 8-pin keyboard interrupt module with software selectable polarity on edge or edge/level modes
Input/Output
• 12 general-purpose input/output (I/O) pins, one input-only pin and one output-only pin; outputs 10 mA each, 60 mA max for package
• Software selectable pullups on ports when used as input
• Software selectable slew rate control and drive strength on ports when used as output
• Internal pullup on RESET and IRQ pin to reduce customer system cost
Development Support
• Single-wire background debug interface
• On-chip, in-circuit emulation (ICE) with real-time bus capture
Package Options
• 16-pin plastic dual in-line package (PDIP) — MC9S08QG8 only
• 16-pin quad flat no lead (QFN) package
• 16-pin thin shrink small outline package (TSSOP)
• 8-pin dual flat no lead (DFN) package
• 8-pin PDIP — MC9S08QG4 only
• 8-pin narrow body small outline integrated circuit (SOIC) package
