CP82C88

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Controller
• Characteristics:
  • High-performance bus controller
  • Compatible with Intel 8088/8086 microprocessors
  • Supports multiprocessor systems
• Package: 40-pin DIP (Dual In-line Package)
• Essence: The CP82C88 is a high-performance bus controller designed for use with Intel 8088/8086 microprocessors. It provides control and arbitration functions for multiprocessor systems.
• Packaging/Quantity: The CP82C88 is typically sold in packs of 10.

Specifications

• Operating Voltage: 5V ± 10%
• Operating Temperature: 0°C to 70°C
• Maximum Clock Frequency: 8 MHz
• Number of Address Lines: 20
• Number of Data Lines: 16
• Number of Interrupt Lines: 4
• Number of Control Lines: 24

Pin Configuration

The CP82C88 has a total of 40 pins. Here is the detailed pin configuration:

1. A0-A19: Address lines
2. D0-D15: Data lines
3. INT0-INT3: Interrupt lines
4. BHE: Bus High Enable
5. S7-S0: Status lines
6. RD: Read control
7. WR: Write control
8. DEN: Data Enable
9. HLDA: Hold Acknowledge
10. HOLD: Hold Request
11. HLDAK: Hold Acknowledge
12. READY: Ready input
13. RESET: Reset input
14. CLK: Clock input
15. VCC: Power supply
16. GND: Ground

Functional Features

• Provides bus control and arbitration functions
• Supports multiprocessor systems
• Compatible with Intel 8088/8086 microprocessors
• Supports high-performance data transfers
• Allows for efficient interrupt handling

Advantages and Disadvantages

Advantages: - High-performance bus controller - Compatibility with Intel 8088/8086 microprocessors - Support for multiprocessor systems - Efficient interrupt handling

Disadvantages: - Limited maximum clock frequency (8 MHz) - Limited number of interrupt lines (4)

Working Principles

The CP82C88 acts as a bus controller in a computer system. It manages the flow of data and control signals between the microprocessor and other devices connected to the bus. It supports multiprocessor systems by providing arbitration functions to ensure fair access to the bus by multiple processors.

The CP82C88 communicates with the microprocessor through address, data, and control lines. It handles read and write operations, interrupt requests, and various status signals. By efficiently managing these signals, it enables smooth data transfers and interrupt handling within the system.

Application Field Plans

The CP82C88 is commonly used in computer systems that require bus control and support for multiprocessor configurations. Some specific application fields include:

1. Server Systems: The CP82C88 facilitates efficient communication between multiple processors in server systems, ensuring smooth operation and data transfer.
2. Embedded Systems: It is used in embedded systems where multiple processors need to share resources and communicate effectively.
3. Industrial Automation: The CP82C88 is employed in industrial automation systems that require reliable bus control and support for multiple processors.

Alternative Models

Here are some alternative models that provide similar functionality to the CP82C88:

1. Intel 8288 Bus Controller
2. AMD Am9517A DMA Controller
3. Zilog Z8530 Serial Communication Controller
4. Motorola MC68450 DMA Controller

These alternative models can be considered based on specific requirements and compatibility with the target system.

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