The MC68705R5S is an 8-bit single-chip microcontroller from the Motorola (now Freescale/NXP) M6805 family. This EPROM-based microcontroller is designed for a wide range of control applications, offering on-chip memory and I/O capabilities.

Applications

• Industrial control systems
• Appliance control
• Motor control applications
• Security systems
• Automotive electronics

Features

• 8-bit CPU with optimized instruction set
• 2.7K bytes of EPROM for program storage
• 112 bytes of RAM for data storage
• 20 bidirectional I/O lines
• 8-bit timer with prescaler
• Serial communication interface (SCI)
• On-chip oscillator
• Interrupt capability
• Low-power operation

Benefits

• Cost-effective solution for embedded control applications.
• EPROM allows for easy program updates and modifications.
• Integrated peripherals reduce the need for external components.
• Versatile I/O capabilities enable interfacing with various sensors and actuators.
• Low-power operation extends battery life in portable devices.
• Simplified system design due to the single-chip architecture.

Technical Specifications

The MC68705R5S operates from a single 5V power supply. It features a flexible interrupt structure, allowing for responsive handling of external events. The SCI provides asynchronous serial communication for interfacing with other devices. The on-chip timer can be used for timing control and event counting. The device is typically packaged in a 40-pin DIP or SOIC package. Programming is done via a standard EPROM programmer. The MC68705R5S is a versatile microcontroller suitable for a broad range of embedded control applications.