The MC68HC705C8ACPB is an 8-bit microcontroller from the MC68HC05 family, manufactured by Freescale Semiconductor (now NXP). It is designed for a wide array of embedded control applications that require a cost-effective and reliable solution.

Applications

• Remote control systems.
• Small motor control.
• Appliance control (e.g., coffee machines, toasters).
• Simple security systems.
• Toys and educational devices.

Features

• 8-bit CPU core (MC68HC05 architecture).
• 8 KB of EPROM (Electrically Programmable Read-Only Memory) for program storage.
• 352 bytes of RAM (Random Access Memory) for data storage.
• 20 Input/Output (I/O) pins, configurable for various functions.
• 8-bit Timer with prescaler.
• Serial Communications Interface (SCI) for UART communication.
• On-chip oscillator.
• Low-voltage inhibit (LVI) for preventing operation at insufficient voltage levels.

Benefits

• Cost-effective solution for embedded control.
• Easy to program and use due to the well-documented MC68HC05 architecture.
• Integrated peripherals reduce the need for external components, simplifying design.
• Suitable for battery-powered applications due to its low-power operation.
• EPROM allows for program updates and modifications.

Additional Details

The MC68HC705C8ACPB typically operates at clock speeds up to 4 MHz. The 'A' indicates a specific revision or feature set of the C8 variant. The device is housed in a DIP (Dual In-line Package) package, denoted by the 'PB' suffix. Power supply voltage is typically 5V. Consult the Freescale/NXP datasheet for complete specifications, timing diagrams, and pinout information. Key considerations for design include managing interrupt routines, configuring the I/O ports, and optimizing code for the available memory space.