MC9RS08KA8CWJ                    Description

 A microcontroller MC9RS08KA8CWJ is a compact integrated circuit designed to govern a specific operation in an embedded system. A typical microcontroller includes a processor, memory and input/output (I/O) peripherals on a single chip.

MC9RS08KA8CWJ                Features

? 8-Bit RS08 Central Processor Unit (CPU)

– Up to 20 MHz CPU at 1.8 V to 5.5 V across temperature

range of –40°C to 85°C

– Subset of HC08 instruction set with added BGND

instruction

? On-Chip Memory

– 8 KB flash read/program/erase over full operating

voltage and temperature; KA4 has 4 KB flash

– 254 byte random-access memory (RAM); KA4 has 126

byte RAM

– Security circuitry to prevent unauthorized access to

RAM and flash contents

? Power-Saving Modes

– Wait and stop

– Wakeup from power-saving modes using real-time

interrupt (RTI), KBI, or ACMP

? Clock Source Options

– Oscillator (XOSC) — Loop-Control Pierce oscillator;

crystal or ceramic resonator range of 31.25 kHz to

39.0625 kHz or 1 MHz to 5 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 up 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

– Illegal opcode detection with reset

– Illegal address detection with reset

– Flash block protection

? Development Support

MC9RS08KA8CWJ                  Applications

embedded system