CS82C55AZ96

The CS82C55AZ96 is a versatile programmable peripheral interface (PPI) designed by Intersil, primarily used in microprocessor-based systems to facilitate communication between the CPU and peripheral devices. This integrated circuit is part of the 82C55 family, which is widely recognized for its ability to interface with various types of input and output devices.

Key Features:

1. Architecture: The CS82C55AZ96 is built on a 40-pin dual in-line package (DIP) form factor, making it easy to integrate into various circuit designs. The chip features three 8-bit parallel I/O ports (Port A, Port B, and Port C), which can be configured as either input or output.

2. Modes of Operation: The device supports multiple modes of operation:

   • Mode 0: Simple I/O mode, where each port can be independently configured as input or output.
   • Mode 1: Strobed I/O mode, which allows for handshaking between the CPU and peripheral devices.
   • Mode 2: Bidirectional bus mode, enabling data transfer in both directions on a single port.

3. Control Register: The CS82C55AZ96 includes a control register that allows the user to configure the operation of the ports and select the desired mode. This register is crucial for setting up the device for specific applications.

4. Data Bus Interface: The chip interfaces with the system bus using an 8-bit data bus, allowing for efficient data transfer between the CPU and the peripheral devices. It operates with standard TTL logic levels, ensuring compatibility with a wide range of microprocessors.

5. Interrupt Capability: The CS82C55AZ96 can generate interrupts, allowing the CPU to respond to events from peripheral devices without continuous polling. This feature enhances system efficiency and responsiveness.

6. Power Supply: The device typically operates at a supply voltage of 5V, making it suitable for use in low-power applications.

7. Temperature Range: The CS82C55AZ96 is designed to operate within a specified temperature range, making it suitable for various environmental conditions.

Applications:

The CS82C55AZ96 is commonly used in applications such as:

• Industrial automation systems
• Data acquisition systems
• Embedded systems
• Robotics
• Communication interfaces

Conclusion:

The CS82C55AZ96 from Intersil is a robust and flexible peripheral interface that enhances the capabilities of microprocessor systems. Its programmable nature, multiple modes of operation, and ease of integration make it a popular choice for engineers and designers looking to interface with a variety of peripheral devices in their applications.