The MC68HC05C4AFN is an 8-bit microcontroller unit (MCU) manufactured by Motorola/Freescale Semiconductor, now available through Rochester Electronics. It is part of the popular 68HC05 family of microcontrollers and is designed for a wide range of embedded control applications. It features a rich set of peripherals and a cost-effective architecture.

Applications:

• Consumer electronics
• Industrial control systems
• Automotive electronics
• Remote control devices
• Instrumentation

Features:

• 8-bit CPU architecture
• 4KB of on-chip ROM
• 176 bytes of on-chip RAM
• 24 bidirectional I/O lines
• 8-bit Timer with prescaler
• On-chip oscillator
• Low-voltage Inhibit (LVI)
• Serial Communications Interface (SCI)
• Analog-to-Digital Converter (ADC)
• Interrupt handling capability

Benefits:

• Cost-effective solution for embedded control applications
• Integrated peripherals reduce the need for external components
• Low power consumption for battery-powered applications
• Versatile I/O capabilities for interfacing with various devices
• Robust design for reliable operation in harsh environments
• Easy to program and debug

Additional Details:

The MC68HC05C4AFN operates from a single power supply, typically 5V. It is available in a variety of packages, including DIP (Dual In-line Package) and SOIC (Small Outline Integrated Circuit). The instruction set is designed for efficient code execution, and the device includes a variety of addressing modes. The on-chip ADC allows for direct measurement of analog signals, while the SCI facilitates serial communication with other devices. It supports various interrupt sources including timer overflow, external interrupts and SCI. This microcontroller is often employed in applications that require a balance of performance and cost. As it is now often supplied by Rochester Electronics, it provides a continued supply option for existing designs.

The MC68HC05C4AFN remains a viable option for many embedded applications where a simple, reliable, and cost-effective microcontroller is needed. Its integrated peripherals and robust architecture make it well-suited for a wide range of tasks.