IQ82C55A96

Product Overview

Category

The IQ82C55A96 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• The IQ82C55A96 is a versatile programmable peripheral interface IC.
• It offers three distinct modes of operation: mode 0, mode 1, and mode 2.
• This IC supports bidirectional data transfer between the microprocessor and peripheral devices.
• It provides parallel input/output lines for efficient data communication.
• The IQ82C55A96 operates at a wide range of voltages, making it compatible with different systems.
• It has a low power consumption feature, ensuring energy efficiency.

Package

The IQ82C55A96 is available in a standard 40-pin dual in-line package (DIP).

Essence

This IC serves as an essential component for enabling communication and control between a microprocessor and peripheral devices.

Packaging/Quantity

The IQ82C55A96 is typically packaged individually and is available in quantities suitable for both small-scale and large-scale applications.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 8 MHz
• Number of I/O Lines: 24
• Number of Interrupt Inputs: 3
• Programmable Modes: Mode 0, Mode 1, Mode 2

Detailed Pin Configuration

The IQ82C55A96 features a total of 40 pins, each serving a specific purpose. 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. INT - Interrupt Request
35. INTA - Interrupt Acknowledge
36. CLK - Clock Input
37. XTAL1 - Crystal Oscillator Input
38. XTAL2 - Crystal Oscillator Output
39. NC - No Connection
40. VCC - Power Supply

Functional Features

The IQ82C55A96 offers the following functional features:

• Three modes of operation: Mode 0, Mode 1, and Mode 2.
• Bidirectional data transfer capability.
• Parallel input/output lines for efficient communication.
• Interrupt capability with three interrupt inputs.
• Reset functionality for system initialization.
• Clock input for synchronization.
• Crystal oscillator support for accurate timing.

Advantages and Disadvantages

Advantages

• Versatile and programmable interface IC.
• Wide operating voltage range.
• Low power consumption.
• Supports bidirectional data transfer.
• Multiple interrupt inputs for enhanced control.

Disadvantages

• Limited number of I/O lines (24).
• Requires external crystal oscillator for precise timing.

Working Principles

The IQ82C55A96 operates by receiving commands from a microprocessor and executing them to control peripheral devices. It communicates bidirectionally with the microprocessor through parallel input/output lines. The IC can be programmed to operate in different modes based on the specific requirements of the system. It utilizes interrupt inputs to handle time-sensitive events and provides reliable data transfer between the microprocessor and peripherals.

Detailed Application Field Plans

The IQ82C55A96 finds applications in various fields where