MC9RS08KA4CWJ Description

The MC9RS08KA8 microcontroller unit (MCU) is a highly integrated and cost-effective microcontroller designed for use in home appliances, medical equipment, and other general-purpose applications. A very compact and highly effective RS08 CPU core, 254 bytes of RAM, 8K bytes of flash, two 8-bit modulo timers, a 12-channel 10-bit ADC, a 2-channel 16-bit timer/PWM, an inter-integrated circuit bus module, a keyboard interrupt, and an analog comparator are just a few of the standard on-chip modules that make up this device. The product comes in 16- and 20-pin units.

MC9RS08KA4CWJ Features

• 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

• Low-Voltage detection with reset or interrupt

• Illegal opcode detection with reset

• Illegal address detection with reset

• Flash block protection

• 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

MC9RS08KA4CWJ Applications

• High-brightness LED

• Lighting systems control

• Toys

• Small handheld devices

• Space-constrained applications

• Small appliances

• AC line voltage monitoring

• Battery charger

• ASIC replacement