GAL20V8B-25LPNI

Product Overview

Category: Programmable Logic Device (PLD)

Use: The GAL20V8B-25LPNI is a high-performance PLD designed for use in various digital logic applications. It offers flexibility and versatility in implementing custom logic functions.

Characteristics: - Low-power consumption - High-speed operation - Wide operating voltage range - Non-volatile memory technology - In-system programmability

Package: The GAL20V8B-25LPNI is available in a 24-pin DIP (Dual Inline Package) format, which allows for easy integration into circuit boards.

Essence: This PLD is based on the Generic Array Logic (GAL) architecture, which combines the advantages of both PAL (Programmable Array Logic) and PLA (Programmable Logic Array) technologies. It provides a cost-effective solution for implementing complex logic functions.

Packaging/Quantity: The GAL20V8B-25LPNI is typically sold in tubes or reels, with a quantity of 25 units per tube/reel.

Specifications

• Operating Voltage: 4.5V to 5.5V
• Speed Grade: 25ns
• Number of Inputs: 20
• Number of Outputs: 8
• Maximum I/O Pins: 16
• Maximum Macrocells: 8
• Maximum Gates: 32
• Programming Technology: Electrically Erasable Programmable Read-Only Memory (EEPROM)

Detailed Pin Configuration

The GAL20V8B-25LPNI has a total of 24 pins, each serving a specific function. Here is the detailed pin configuration:

1. GND - Ground
2. I/O0 - Input/Output Pin 0
3. I/O1 - Input/Output Pin 1
4. I/O2 - Input/Output Pin 2
5. I/O3 - Input/Output Pin 3
6. I/O4 - Input/Output Pin 4
7. I/O5 - Input/Output Pin 5
8. I/O6 - Input/Output Pin 6
9. I/O7 - Input/Output Pin 7
10. VCC - Power Supply
11. CE1 - Chip Enable 1
12. CE2 - Chip Enable 2
13. OE - Output Enable
14. I/O8 - Input/Output Pin 8
15. I/O9 - Input/Output Pin 9
16. I/O10 - Input/Output Pin 10
17. I/O11 - Input/Output Pin 11
18. I/O12 - Input/Output Pin 12
19. I/O13 - Input/Output Pin 13
20. I/O14 - Input/Output Pin 14
21. I/O15 - Input/Output Pin 15
22. CLK - Clock Input
23. GND - Ground
24. VCC - Power Supply

Functional Features

• In-system programmability allows for easy updates and modifications to the logic functions.
• High-speed operation enables efficient processing of digital signals.
• Low-power consumption ensures energy efficiency in various applications.
• Wide operating voltage range provides compatibility with different power supply systems.
• Non-volatile memory technology retains programmed logic even when power is removed.

Advantages and Disadvantages

Advantages: - Versatile and flexible for implementing custom logic functions. - Cost-effective solution compared to other programmable logic devices. - Easy integration into circuit boards due to the DIP package format. - In-system programmability allows for on-the-fly updates and modifications.

Disadvantages: - Limited number of inputs and outputs compared to more advanced PLDs. - Relatively slower speed grade compared to newer generations of PLDs. - Programming technology requires additional equipment for initial programming.

Working Principles

The GAL20V8B-25LPNI operates based on the principle of electrically erasable programmable read-only memory (EEPROM). The device is initially programmed with a specific logic configuration using specialized programming equipment. Once programmed, the GAL20V8B-25LPNI retains its logic functions even when power is removed. During operation, the device receives input signals, processes them according to the programmed logic, and produces output signals accordingly.

Detailed Application Field Plans

The GAL20V8B-25LPNI finds applications in various fields where custom logic functions are required. Some potential application areas include: - Industrial automation - Communication systems - Consumer electronics - Automotive electronics - Medical devices

In industrial automation, the GAL20V8B-25LPNI can be used to implement control logic for machinery and process automation. In communication systems, it can be utilized for protocol conversion and signal processing. In consumer electronics, it can enable