CP82C55A-5

Product Overview

Category

The CP82C55A-5 belongs to the category of programmable peripheral interface chips.

Use

It is primarily used as an interface between a microprocessor and various peripheral devices.

Characteristics

• Programmable: The CP82C55A-5 can be programmed to perform different functions based on the requirements of the system.
• Versatile: It supports a wide range of input/output operations, making it suitable for various applications.
• Reliable: The chip is known for its high performance and reliability.
• Low power consumption: It operates efficiently with low power consumption.

Package

The CP82C55A-5 is available in a 40-pin DIP (Dual Inline Package) format.

Essence

The essence of the CP82C55A-5 lies in its ability to provide flexible and efficient interfacing capabilities between a microprocessor and peripheral devices.

Packaging/Quantity

The CP82C55A-5 is typically packaged individually and is available in various quantities depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 5V
• Maximum Clock Frequency: 8 MHz
• Number of I/O Ports: 24
• Number of Timers/Counters: 3
• Interrupt Capability: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

1. PA0 - Port A Bit 0
2. PA1 - Port A Bit 1
3. PA2 - Port A Bit 2
4. PA3 - Port A Bit 3
5. PA4 - Port A Bit 4
6. PA5 - Port A Bit 5
7. PA6 - Port A Bit 6
8. PA7 - Port A Bit 7
9. GND - Ground
10. PB0 - Port B Bit 0
11. PB1 - Port B Bit 1
12. PB2 - Port B Bit 2
13. PB3 - Port B Bit 3
14. PB4 - Port B Bit 4
15. PB5 - Port B Bit 5
16. PB6 - Port B Bit 6
17. PB7 - Port B Bit 7
18. PC0 - Port C Bit 0
19. PC1 - Port C Bit 1
20. PC2 - Port C Bit 2
21. PC3 - Port C Bit 3
22. PC4 - Port C Bit 4
23. PC5 - Port C Bit 5
24. PC6 - Port C Bit 6
25. PC7 - Port C Bit 7
26. VCC - Power Supply
27. RD - Read Control
28. WR - Write Control
29. CS - Chip Select
30. A0 - Address Bit 0
31. A1 - Address Bit 1
32. A2 - Address Bit 2
33. RESET - Reset Input
34. CLK - Clock Input
35. INT - Interrupt Output
36. TC - Timer/Counter Output
37. TO - Timer Output
38. T1 - Timer 1 Input
39. T2 - Timer 2 Input
40. T3 - Timer 3 Input

Functional Features

The CP82C55A-5 offers the following functional features:

• I/O Modes: It supports three different modes of operation for each I/O port, including mode 0 (basic input/output), mode 1 (strobe input/output), and mode 2 (bidirectional bus).
• Timer/Counter Modes: The chip provides three timers/counters with various modes of operation, including event counter, rate generator, square wave generator, and software-triggered strobe.
• Interrupt Capability: It supports interrupt-driven data transfer, allowing efficient communication between the microprocessor and peripheral devices.
• Handshake Signals: The CP82C55A-5 includes handshake signals such as RDY (Ready), ACK (Acknowledge), and BUSY to ensure proper synchronization between the microprocessor and peripherals.

Advantages and Disadvantages

Advantages

• Versatility: The CP82C55A-5 can be programmed to suit different applications, making it highly versatile.
• Efficient I/O Operations: It offers a wide range of I/O modes, enabling efficient data transfer between the microprocessor and peripheral devices.
• Reliable Performance: The chip is known for its reliable performance and high-speed operation.
• Low Power Consumption: It operates efficiently with low power consumption, making it suitable for battery-powered devices.

Disadvantages

• Limited Number of I/O Ports: The CP82C55A-5 has a limited