IS82C55A-5Z

Product Overview

Category

The IS82C55A-5Z belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• The IS82C55A-5Z is a versatile programmable peripheral interface (PPI) chip.
• It offers three 8-bit parallel I/O ports, which can be configured as input or output ports.
• The chip supports various modes of operation, including mode 0, mode 1, and mode 2.
• It operates at a voltage range of 4.5V to 5.5V.
• The IS82C55A-5Z is designed to provide reliable and efficient control and communication between a microprocessor and external devices.

Package

The IS82C55A-5Z is available in a 40-pin DIP (Dual In-line Package) format.

Essence

The essence of the IS82C55A-5Z lies in its ability to facilitate data transfer and control signals between a microprocessor and peripheral devices.

Packaging/Quantity

The IS82C55A-5Z is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input/Output Ports: Three 8-bit parallel ports
• Modes of Operation: Mode 0, Mode 1, Mode 2
• Package Type: 40-pin DIP

Detailed Pin Configuration

The IS82C55A-5Z has a total of 40 pins. Here is the 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. RD (Read Control)
27. WR (Write Control)
28. CS (Chip Select)
29. A0 (Address Bit 0)
30. A1 (Address Bit 1)
31. A2 (Address Bit 2)
32. RESET (Reset Input)
33. VCC (+5V Power Supply)
34. XTAL1 (Crystal Oscillator Input)
35. XTAL2 (Crystal Oscillator Output)
36. CLK (Clock Input)
37. INT (Interrupt Output)
38. HOLD (Hold Input)
39. HLDA (Hold Acknowledge Output)
40. VCC (+5V Power Supply)

Functional Features

The IS82C55A-5Z offers the following functional features:

1. Programmable I/O Ports: The three 8-bit parallel ports can be configured as input or output ports based on the application requirements.
2. Modes of Operation: The chip supports three modes of operation - Mode 0, Mode 1, and Mode 2. Each mode provides different functionalities and timing characteristics.
3. Read and Write Control: The RD (Read Control) and WR (Write Control) pins enable the microprocessor to read data from or write data to the peripheral devices connected to the IC.
4. Interrupt Capability: The INT (Interrupt Output) pin allows the IC to generate an interrupt signal to the microprocessor, indicating the occurrence of a specific event.
5. Reset Functionality: The RESET pin resets the internal registers and restores the IC to its initial state.

Advantages and Disadvantages

Advantages

• Versatility: The