GAL20V8B-15LJN

Product Overview

Category

The GAL20V8B-15LJN belongs to the category of programmable logic devices (PLDs).

Use

It is commonly used in digital circuit design and implementation, specifically for applications that require programmable logic functions.

Characteristics

• Programmable: The GAL20V8B-15LJN can be programmed to perform various logic functions.
• High-speed operation: It operates at a high clock frequency, allowing for efficient processing of digital signals.
• Low power consumption: The device is designed to minimize power consumption, making it suitable for battery-powered applications.
• Versatile: It supports a wide range of logic functions, enabling flexible circuit design.

Package

The GAL20V8B-15LJN is available in a 24-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of GAL20V8B-15LJN lies in its ability to provide programmable logic functions, allowing designers to implement custom digital circuits without the need for dedicated hardware.

Packaging/Quantity

The GAL20V8B-15LJN is typically packaged in reels or tubes, with each package containing a specific quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating Voltage: 5V
• Maximum Operating Frequency: 15 MHz
• Number of Inputs: 20
• Number of Outputs: 8
• Logic Cells: 20
• Programmable Macrocells: 8
• Maximum Propagation Delay: 15 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The GAL20V8B-15LJN has a total of 24 pins, each serving a specific purpose. 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. CE1: Chip Enable 1
11. CE2: Chip Enable 2
12. OE: Output Enable
13. CLK: Clock
14. I/O8: Input/Output 8
15. I/O9: Input/Output 9
16. I/O10: Input/Output 10
17. I/O11: Input/Output 11
18. I/O12: Input/Output 12
19. I/O13: Input/Output 13
20. I/O14: Input/Output 14
21. I/O15: Input/Output 15
22. VCC: Power Supply
23. NC: No Connection
24. GND: Ground

Functional Features

The GAL20V8B-15LJN offers the following functional features:

• Programmable Logic: It can be configured to perform various logic functions, such as AND, OR, XOR, and more.
• Macrocells: The device includes programmable macrocells that can be used for sequential logic implementation.
• Output Enable: The output enable pin allows for control over the output state of the device.
• Chip Enable: The chip enable pins enable or disable the device, providing flexibility in system design.

Advantages and Disadvantages

Advantages

• Flexibility: The GAL20V8B-15LJN's programmability allows for versatile circuit design.
• Cost-effective: It eliminates the need for dedicated hardware, reducing overall costs.
• Time-saving: Designers can quickly implement custom logic functions without extensive circuitry.

Disadvantages

• Limited Complexity: The device has a limited number of logic cells and macrocells, which may restrict the complexity of designs.
• Programming Required: The GAL20V8B-15LJN needs to be programmed before use, requiring additional setup time.

Working Principles

The GAL20V8B-15LJN operates based on the principles of programmable logic. It consists of a matrix of configurable logic cells that can be interconnected to perform desired logic functions. These connections are established by programming the device using specialized software or hardware programmers. Once programmed, the GAL20V8B-15LJN executes the specified logic functions based on the input signals received.

Detailed Application Field Plans

The GAL20V8B-15LJN finds applications in various fields, including:

1. Digital Circuit Design: It is widely used in designing digital circuits for consumer electronics