The IP82C55AZ is an integrated circuit (IC) component that is widely used in the field of digital electronics. It is a programmable peripheral interface with 3 I/O ports, developed by Intel Corporation. The key features of the IP82C55AZ are as follows:
1. Versatile I/O Configuration: The IP82C55AZ provides three 8-bit bidirectional I/O ports, namely Port A, Port B, and Port C. These ports can be individually programmed as inputs or outputs, ensuring flexible interfacing with external devices.
2. Operating Modes: The IC supports three distinct operating modes: mode 0, mode 1, and mode 2. Mode 0 utilizes basic I/O operation, while mode 1 offers features like interrupt capability and handshake signals. Mode 2 provides bi-directional bus capability for efficient data transfer.
3. Interrupt Capabilities: The IP82C55AZ can generate interrupts for each I/O port, enabling efficient interrupt-driven data transfer and processing. It offers several interrupt control options, such as level-triggered or edge-triggered interrupts.
4. Read/Write Timing: The IC operates at clock frequencies ranging from DC to 3.5 MHz. It provides ease of use through standard read (RD) and write (WR) timing control signals, simplifying the interfacing process.
5. Handshake Signals: The IP82C55AZ features two handshake signals, ready (RDY) and acknowledge (ACK). They facilitate efficient data transfer between the IC and external devices, ensuring reliable communication.
6. Power Supply and Packaging: The IC requires a +5V power supply and comes in a 40-pin DIP (Dual-In-Line Package) format, making it easily integrable on circuit boards.
The IP82C55AZ is widely used in various applications, such as data acquisition systems, industrial control systems, and automation. Its versatility, interrupt capabilities, and flexible I/O configuration make it a popular choice for digital designers seeking reliable and efficient peripheral interfacing solutions.
