CS82C59A

Product Overview

Category

The CS82C59A belongs to the category of integrated circuits (ICs).

Use

It is primarily used as a programmable interrupt controller (PIC) in computer systems.

Characteristics

• The CS82C59A is a versatile and highly configurable IC.
• It offers advanced interrupt handling capabilities.
• It supports up to eight interrupt request (IRQ) lines.
• The IC can be programmed to prioritize and manage interrupts efficiently.

Package

The CS82C59A is available in a standard 28-pin dual in-line package (DIP).

Essence

The essence of the CS82C59A lies in its ability to effectively handle interrupts, ensuring smooth operation of computer systems.

Packaging/Quantity

The IC is typically sold individually or in small quantities, packaged in anti-static tubes or trays.

Specifications

• Number of IRQ lines: 8
• Operating voltage: 5V
• Maximum clock frequency: 8 MHz
• Package type: DIP-28
• Temperature range: -40°C to +85°C

Detailed Pin Configuration

The CS82C59A features the following pin configuration:

1. INT0: Interrupt Request Line 0
2. INT1: Interrupt Request Line 1
3. INT2: Interrupt Request Line 2
4. INT3: Interrupt Request Line 3
5. INT4: Interrupt Request Line 4
6. INT5: Interrupt Request Line 5
7. INT6: Interrupt Request Line 6
8. INT7: Interrupt Request Line 7
9. GND: Ground
10. AEN: Address Enable
11. CAS2: Chip Select 2
12. CAS1: Chip Select 1
13. CAS0: Chip Select 0
14. CLK: Clock Input
15. RESET: Reset Input
16. SP/EN: Slave Priority Enable
17. DREQ: DMA Request
18. DACK: DMA Acknowledge
19. EOI: End of Interrupt
20. INTR: Interrupt Output
21. A0: Address Line 0
22. A1: Address Line 1
23. A2: Address Line 2
24. A3: Address Line 3
25. A4: Address Line 4
26. A5: Address Line 5
27. VCC: Power Supply
28. NC: No Connection

Functional Features

• Efficient interrupt handling and prioritization.
• Programmable interrupt modes.
• Cascading capability for handling more than eight IRQ lines.
• Compatibility with various microprocessors.
• Easy integration into computer systems.

Advantages and Disadvantages

Advantages

• Versatile and highly configurable.
• Supports multiple interrupt request lines.
• Efficient interrupt handling.
• Compatible with a wide range of microprocessors.
• Easy to integrate into computer systems.

Disadvantages

• Limited number of IRQ lines (up to eight).
• Requires additional circuitry for cascading beyond eight IRQ lines.
• Relatively large package size compared to modern ICs.

Working Principles

The CS82C59A operates by receiving interrupt requests from various devices connected to the computer system. It prioritizes these requests based on their assigned levels and sends them to the appropriate microprocessor for processing. The IC also handles interrupt acknowledgment and end-of-interrupt signals, ensuring proper synchronization between the devices and the microprocessor.

Detailed Application Field Plans

The CS82C59A finds applications in various computer systems where efficient interrupt handling is crucial. Some specific application areas include:

1. Personal computers
2. Embedded systems
3. Industrial automation
4. Communication equipment
5. Gaming consoles

Detailed and Complete Alternative Models

1. Intel 8259A
2. Motorola MC82C59A
3. Texas Instruments SN82C59A
4. AMD Am9519A

These alternative models offer similar functionality to the CS82C59A and can be used as replacements or alternatives in various applications.

In conclusion, the CS82C59A is a versatile programmable interrupt controller that plays a crucial role in managing interrupts in computer systems. Its advanced features, compatibility, and ease of integration make it a valuable component in a wide range of applications.