GAL18V10B-15LP

Product Overview

Category: Programmable Logic Device (PLD)

Use: The GAL18V10B-15LP is a versatile PLD designed for various digital logic applications. It offers programmable functionality, allowing users to implement custom logic functions.

Characteristics: - High-performance CMOS technology - Low power consumption - Wide operating voltage range - Fast propagation delay - High input/output pin count

Package: The GAL18V10B-15LP is available in a 20-pin DIP (Dual In-line Package) or a 20-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence: This PLD provides a flexible and cost-effective solution for implementing complex digital logic circuits. It eliminates the need for discrete components and simplifies circuit design.

Packaging/Quantity: The GAL18V10B-15LP is typically sold in tubes or trays containing multiple units, with quantities varying based on customer requirements.

Specifications

• Operating Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 15ns (max)
• Number of Inputs/Outputs: 10 inputs / 8 outputs
• Programmable Macrocell: 10 macrocells
• Programmable Logic Array (PLA): 18 inputs, 10 outputs
• Programmable Output Logic: Registered or combinatorial

Detailed Pin Configuration

The GAL18V10B-15LP has a total of 20 pins, each serving a specific function:

1. VCC - Power supply voltage
2. GND - Ground reference
3. I/O0-I/O7 - General-purpose input/output pins
4. OE - Output enable
5. CE1 - Chip enable 1
6. CE2 - Chip enable 2
7. CE3 - Chip enable 3
8. CE4 - Chip enable 4
9. CE5 - Chip enable 5
10. CE6 - Chip enable 6
11. CE7 - Chip enable 7
12. CE8 - Chip enable 8
13. CE9 - Chip enable 9
14. CE10 - Chip enable 10
15. CLK - Clock input
16. MR - Master reset
17. TCK - Test clock
18. TDI - Test data input
19. TDO - Test data output
20. TRST - Test reset

Functional Features

• Programmability: The GAL18V10B-15LP can be programmed to implement a wide range of logic functions, making it highly versatile.
• Flexible I/O Configuration: The device offers configurable input/output pins, allowing customization based on specific application requirements.
• Registered or Combinatorial Output Logic: Users can choose between registered or combinatorial output logic modes, providing flexibility in circuit design.

Advantages and Disadvantages

Advantages: - Versatile and programmable functionality - Low power consumption - Wide operating voltage range - Fast propagation delay - Cost-effective solution for complex digital logic circuits

Disadvantages: - Limited number of inputs/outputs compared to higher-density PLDs - Programming required for desired logic functions

Working Principles

The GAL18V10B-15LP utilizes a combination of programmable logic array (PLA) and programmable macrocells to implement custom logic functions. The PLA consists of an array of AND gates followed by an array of OR gates, allowing the creation of complex logic equations. The programmable macrocells provide additional functionality such as flip-flops, latches, or combinatorial logic.

The device is programmed using a dedicated programming tool that configures the internal connections of the PLA and macrocells based on the desired logic functions. Once programmed, the GAL18V10B-15LP operates as a fixed-function digital circuit.

Detailed Application Field Plans

The GAL18V10B-15LP finds applications in various fields, including:

1. Embedded Systems: Used for implementing custom logic functions in microcontroller-based systems.
2. Communications: Employed in communication devices for protocol conversion, signal processing, and data manipulation.
3. Industrial Automation: Utilized in control systems, PLCs (Programmable Logic Controllers), and robotics for logic control and interfacing.
4. Test and Measurement: Integrated into test equipment for signal generation, protocol emulation, and data analysis.
5. Consumer Electronics: Incorporated in consumer devices for custom logic implementation, such as remote controls and gaming consoles.

Detailed and Complete Alternative Models

1. GAL22V10B: Higher-density version with 22 inputs/outputs and 12 macrocells. 2