CS82C55A

The CS82C55A is a programmable peripheral interface chip developed by Intel. It is a general-purpose input/output device that provides three 8-bit parallel ports (Port A, Port B, and Port C), each with programmable modes of operation. Port A and Port B can be used as either inputs or outputs, while Port C can be split into two 4-bit nibbles for either I/O or control purposes. The chip can operate in three modes: Mode 0 (basic I/O), Mode 1 (strobe handshaking), and Mode 2 (bidirectional data bus).The CS82C55A also features an internal timing generator that can be used to generate various clock frequencies for timing operations. In addition, it has an interrupt system that can be programmed to interrupt the microprocessor when a certain condition is met.The CS82C55A is commonly used in embedded systems, industrial automation, and control applications due to its versatility and ease of use. It is compatible with a wide range of microprocessors and can be easily interfaced with different types of devices.

Key Features

• Compatible with industry standard
• Three programmable I/O ports
• 24 pins dual in-line package (DIP)
• High-speed clock rates
• Operating voltage range: 4.5V to 5.5V
• Internal interrupt control logic

Application

• Industrial control systems
• Embedded systems
• Automated test equipment
• Internet of Things (IoT) devices
• Communication systems