The MC68HC05C4 is an 8-bit microcontroller from Freescale Semiconductor (now NXP). It's part of the HC05 family of microcontrollers, known for their cost-effectiveness and ease of use. This microcontroller is designed for a wide range of embedded control applications.

Applications

• Consumer Electronics
• Automotive Control Systems
• Industrial Automation
• Remote Control Devices
• Security Systems

Features

• 8-Bit CPU: Executes instructions efficiently.
• 4KB ROM/EPROM: Provides memory for storing program code (typically EPROM on older versions).
• 176 Bytes RAM: Offers volatile memory for data storage.
• 20 I/O Pins: Enables interfacing with external devices and sensors.
• 8-Bit Timer with Prescaler: Facilitates timing and control functions.
• Serial Communications Interface (SCI): Supports serial data communication.
• On-Chip Oscillator: Simplifies system design by eliminating the need for an external oscillator circuit.

Benefits

• Cost-Effective Solution: Provides a low-cost solution for embedded control applications.
• Ease of Use: Simple architecture and instruction set simplify programming.
• Flexible I/O: Allows for easy interfacing with a variety of external devices.
• Integrated Peripherals: Reduces external component count and simplifies system design.
• Low Power Consumption: Suitable for battery-powered applications.

Additional Details

The MC68HC05C4 microcontroller operates from a single power supply and includes a variety of on-chip peripherals, making it suitable for a wide range of embedded control applications. The 8-bit CPU executes instructions efficiently, and the 4KB ROM/EPROM provides ample memory for storing program code. The 176 bytes of RAM offer volatile memory for data storage. The 20 I/O pins enable interfacing with external devices and sensors. The 8-bit timer with prescaler facilitates timing and control functions, and the Serial Communications Interface (SCI) supports serial data communication. The on-chip oscillator simplifies system design by eliminating the need for an external oscillator circuit. Freescale (NXP) provides extensive documentation and support to assist designers in using the MC68HC05C4 in their projects. Its compact design and low power consumption make it an ideal choice for battery-powered applications. The microcontroller can be programmed using various development tools, including assemblers and C compilers. Its versatility and ease of use have made it a popular choice for a wide range of embedded control applications for many years. The memory map also contains interrupt vectors, allowing for efficient handling of interrupt requests from various peripherals.