CP82C55A-5Z

Product Overview

Category

The CP82C55A-5Z belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in various electronic devices for controlling and interfacing with peripheral devices.

Characteristics

• The CP82C55A-5Z is a versatile programmable peripheral interface (PPI) chip.
• It offers three 8-bit ports (Port A, Port B, and Port C) that can be configured as inputs or outputs.
• It supports various modes of operation, including mode 0 (basic input/output), mode 1 (strobe input/output), and mode 2 (bidirectional bus).
• The IC operates at a voltage range of 4.5V to 5.5V.
• It is designed to withstand industrial temperature ranges (-40°C to +85°C).

Package and Quantity

The CP82C55A-5Z is available in a 40-pin DIP (Dual Inline Package) format. It is typically sold in quantities of one unit per package.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Number of Ports: 3 (Port A, Port B, Port C)
• Port Configuration: Programmable as input or output
• Modes of Operation: Mode 0, Mode 1, Mode 2
• Package Type: 40-pin DIP

Detailed Pin Configuration

The CP82C55A-5Z has a total of 40 pins. Here is the detailed pin configuration:

1. VCC (+5V)
2. GND (Ground)
3. Port A0
4. Port A1
5. Port A2
6. Port A3
7. Port A4
8. Port A5
9. Port A6
10. Port A7
11. Port B0
12. Port B1
13. Port B2
14. Port B3
15. Port B4
16. Port B5
17. Port B6
18. Port B7
19. Port C0
20. Port C1
21. Port C2
22. Port C3
23. Port C4
24. Port C5
25. Port C6
26. Port C7
27. RD (Read)
28. WR (Write)
29. CS (Chip Select)
30. A0 (Address Bit 0)
31. A1 (Address Bit 1)
32. A2 (Address Bit 2)
33. RESET (Reset)
34. CLK (Clock)
35. INTA (Interrupt Acknowledge)
36. INTR (Interrupt Request)
37. HOLD (Hold)
38. HLDA (Hold Acknowledge)
39. READY (Ready)
40. XTAL (Crystal Oscillator)

Functional Features

• The CP82C55A-5Z provides a flexible and programmable interface for peripheral devices.
• It allows bidirectional data transfer between the microprocessor and external devices.
• The IC supports various modes of operation, enabling versatile control and data transfer capabilities.
• It offers interrupt handling features to efficiently manage real-time events.
• The CP82C55A-5Z incorporates latching and buffering mechanisms to ensure reliable data transmission.

Advantages and Disadvantages

Advantages

• Versatile and programmable interface for peripheral devices.
• Supports multiple modes of operation.
• Reliable data transmission with latching and buffering mechanisms.
• Interrupt handling capability for real-time event management.

Disadvantages

• Limited number of ports (3 ports).
• Requires external components for complete system integration.
• May require additional programming effort for specific applications.

Working Principles

The CP82C55A-5Z operates based on the principles of digital logic and microprocessor interfacing. It receives commands and data from the microprocessor, processes them according to the selected mode of operation, and controls the communication with peripheral devices. The IC utilizes internal registers and control signals to manage data transfer, interrupt handling, and other functionalities.

Detailed Application Field Plans

The CP82C55A-5Z finds applications in various fields where interfacing and control of peripheral devices are required. Some common application areas include:

1. Industrial Automation: Used for controlling sensors, actuators, and other industrial devices.
2. Communication Systems: Facilitates data transfer between microcontrollers and communication modules.
3. Embedded Systems: Enables interaction with external peripherals in embedded systems.
4. Robotics: Provides interface capabilities for controlling robot movements and sensors.
5. Test and Measurement Equipment: Utilized for data acquisition and control in test and measurement setups.

Detailed and Complete Alternative Models

1. Intel 8255A
2. Zilog