The Intersil P82C53-5 is a programmable interval timer (PIT) designed for use in microcomputer systems. It provides versatile timing capabilities, allowing for the generation of accurate time delays, square waves, and other timing signals essential for various applications. This component offers three independent 16-bit counters, each configurable for different operating modes, making it a highly adaptable solution for timing-related tasks.

Applications

• Real-Time Clocks
• Frequency Generation
• Event Counting
• Industrial Control Systems
• Embedded Systems

Features

• Three Independent 16-Bit Counters: Provides multiple channels for versatile timing applications.
• Programmable Operating Modes: Offers different operating modes, including interval timer, rate generator, and software triggered strobe.
• Binary or BCD Counting: Supports both binary and Binary Coded Decimal (BCD) counting formats.
• Read-Back Command: Allows reading the current count value of any counter without interrupting the counting process.
• High Resolution: Offers precise timing control with its 16-bit resolution.

Benefits

• Versatile Timing: Adaptable to a wide range of timing applications with its programmable modes and counters.
• Accurate Time Delays: Generates precise time intervals essential for real-time applications.
• Simplified System Design: Reduces the need for external timing circuitry, simplifying system design and lowering component count.
• Efficient CPU Utilization: Operates independently of the CPU, allowing for parallel processing and improved overall system performance.

Additional Details

The P82C53-5 is controlled through a set of control registers that define the operating mode, counting format (binary or BCD), and other parameters for each counter. Data is written to and read from the counters via the system bus. The device is typically interfaced to the microprocessor via a parallel I/O port. Its ability to generate accurate and reliable timing signals makes it a critical component in numerous industrial and embedded systems. It operates on a 5V power supply and is commonly available in a DIP (Dual In-line Package). The '5' in P82C53-5 generally indicates a specific speed grade or operating frequency.