GAL20V8B-25LJNI

Product Overview

Category

The GAL20V8B-25LJNI belongs to the category of programmable logic devices (PLDs).

Use

It is commonly used in digital circuit design and implementation.

Characteristics

• Programmable: The GAL20V8B-25LJNI can be programmed to perform specific logic functions.
• Versatile: It supports a wide range of applications due to its programmability.
• High-speed operation: It operates at a speed of 25 nanoseconds (ns).
• Low power consumption: It consumes minimal power during operation.

Package

The GAL20V8B-25LJNI is available in a 24-pin plastic J-leaded chip carrier package.

Essence

The essence of the GAL20V8B-25LJNI lies in its ability to provide flexible and customizable logic functions for various digital circuit designs.

Packaging/Quantity

This product is typically sold in reels or tubes, with each containing a specified quantity of GAL20V8B-25LJNI chips.

Specifications

• Operating Voltage: 5V
• Maximum Operating Frequency: 40 MHz
• Number of Inputs: 20
• Number of Outputs: 8
• Logic Cells: 20
• I/O Pins: 16
• Maximum Propagation Delay: 25 ns

Detailed Pin Configuration

The GAL20V8B-25LJNI has a total of 24 pins. The pin configuration is as follows:

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

Functional Features

The GAL20V8B-25LJNI offers the following functional features:

• Programmable AND/OR array: Allows users to define custom logic functions.
• Macrocells: Provides flip-flops for sequential logic implementation.
• Output enable control: Enables or disables the output signals.
• Fast propagation delay: Ensures high-speed operation.

Advantages and Disadvantages

Advantages

• Flexibility: The GAL20V8B-25LJNI can be programmed to perform various logic functions, making it suitable for a wide range of applications.
• Cost-effective: Its programmability eliminates the need for multiple fixed-function logic devices, reducing overall costs.
• High-speed operation: With a maximum operating frequency of 40 MHz, it can handle complex digital circuits efficiently.

Disadvantages

• Limited complexity: The GAL20V8B-25LJNI has a limited number of logic cells, which may restrict the complexity of designs it can accommodate.
• Programming required: Users need to program the device before use, which may require additional time and expertise.

Working Principles

The GAL20V8B-25LJNI operates based on the principles of programmable logic. It consists of an array of programmable AND/OR gates that can be configured to implement custom logic functions. The inputs are fed into the product terms, which are then combined using the programmable AND array. The output of the AND array is further processed by the macrocells, which provide sequential logic elements such as flip-flops. The resulting outputs are obtained through the output pins.

Detailed Application Field Plans

The GAL20V8B-25LJNI finds applications in various fields, including:

1. Digital circuit design: It can be used to implement complex logic functions in digital systems.
2. Communication systems: It can be utilized for protocol conversion, data encoding/decoding, and signal processing.
3. Industrial automation: It can control and monitor processes in industrial environments.
4. Automotive electronics: It can be employed in automotive control units, driver assistance systems, and infotainment systems.
5. Consumer electronics: It