The TMP82C55AF-2 is a programmable peripheral interface (PPI) chip manufactured by Toshiba Semiconductor and Storage. It is designed to provide a flexible and versatile interface between a microprocessor and peripheral devices. The device features three 8-bit parallel ports (Port A, Port B, and Port C), which can be individually configured for input or output operations. The TMP82C55AF-2 simplifies the design of peripheral interfaces and reduces the overall component count in microcomputer systems.

Applications

  
• Parallel Data Transfer: Used for transferring data between a microprocessor and peripheral devices.
  
• Keyboard and Display Interface: Interfaces keyboards and displays to microcomputer systems.
  
• Printer Interface: Connects printers to microprocessors for printing applications.
  
• Motor Control: Controls the operation of stepper motors and other motor types.
  
• Sensor Interface: Interfaces various types of sensors to microcomputer systems.
  
• General Purpose I/O: Provides general-purpose input/output capabilities for various applications.

Features

  
• Three 8-bit Parallel Ports: Offers versatile I/O capabilities.
  
• Programmable Port Configuration: Allows each port to be configured as input or output.
  
• Bit Set/Reset Capability: Enables individual bits of Port C to be set or reset.
  
• Simple Interface: Simplifies the connection to microprocessors and peripheral devices.
  
• Single 5V Power Supply: Simplifies power supply requirements.
  
• TTL Compatible: Interfaces easily with other TTL logic devices.

Benefits

  
• Flexible I/O Control: Provides versatile control over peripheral devices.
  
• Simplified System Design: Reduces the complexity of peripheral interfaces.
  
• Reduced Component Count: Integrates multiple I/O functions into a single chip.
  
• Improved System Performance: Enhances the efficiency and responsiveness of peripheral interactions.
  
• Cost-Effective Solution: Provides a cost-efficient way to implement peripheral interfaces.

Additional Details

The TMP82C55AF-2 operates from a single 5V power supply and is fully TTL compatible. The device is programmed through an 8-bit data bus and a set of control signals, allowing for easy configuration of the I/O ports. The operating temperature range is typically from 0°C to 70°C. The device is usually packaged in a 40-pin DIP (Dual In-line Package). Each of the three ports (A, B, and C) can be configured independently as either an input or an output port. Port C also offers the ability to set or reset individual bits, providing additional flexibility for control applications.