CS82C55AZ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: General Purpose Programmable Peripheral Interface
• Characteristics:
  • Versatile and flexible input/output capabilities
  • Compatible with various microprocessors
  • High reliability and performance
• Package: 40-pin DIP (Dual In-line Package)
• Essence: Provides a programmable interface between a microprocessor and external devices
• Packaging/Quantity: Available in tubes or trays, quantity varies based on supplier

Specifications

• Supply Voltage: 5V ±10%
• Operating Temperature Range: 0°C to 70°C
• Input/Output Voltage Levels: TTL compatible
• Maximum Clock Frequency: 8 MHz
• Number of I/O Ports: 24
• Interrupt Capability: Yes
• Data Bus Width: 8 bits

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. A0 - Address Bit 0
27. A1 - Address Bit 1
28. A2 - Address Bit 2
29. RD - Read Control
30. WR - Write Control
31. CS - Chip Select
32. RESET - Reset Control
33. CLK - Clock Input
34. INT - Interrupt Output
35. VCC - Supply Voltage
36. NC - No Connection
37. NC - No Connection
38. NC - No Connection
39. NC - No Connection
40. GND - Ground

Functional Features

• Versatile I/O capabilities allow interfacing with various devices such as keyboards, displays, sensors, etc.
• Programmable interrupt capability for efficient event handling
• Three 8-bit ports (A, B, and C) provide flexible data transfer options
• Bidirectional data bus enables both input and output operations
• Compatible with a wide range of microprocessors, enhancing compatibility and ease of integration

Advantages

• Flexible and customizable I/O interface
• High reliability and performance
• Wide operating temperature range
• Versatile interrupt handling capability
• Compatibility with various microprocessors

Disadvantages

• Limited number of I/O ports compared to some other programmable peripheral interfaces
• Requires external components for complete system integration
• Availability may vary based on supplier and market demand

Working Principles

The CS82C55AZ acts as an intermediary between a microprocessor and external devices. It provides programmable I/O capabilities, allowing the microprocessor to communicate with various peripherals. The chip can be programmed to handle different data transfer modes, interrupt handling, and other functionalities based on the specific requirements of the application.

Detailed Application Field Plans

The CS82C55AZ finds applications in various fields where a microprocessor needs to interface with external devices. Some common application areas include: - Industrial automation systems - Robotics - Data acquisition systems - Instrumentation - Communication equipment

Detailed and Complete Alternative Models

1. Intel 8255A
2. Motorola MC6820
3. Zilog Z80PIO
4. National Semiconductor INS8255
5. Texas Instruments SN74LS244

These alternative models offer similar functionality and can be used as substitutes for the CS82C55AZ in compatible applications.

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