LC4256B-5T176I

Product Overview

Category: Integrated Circuit (IC)

Use: The LC4256B-5T176I is a programmable logic device (PLD) that belongs to the LC4000 series of CPLDs (Complex Programmable Logic Devices). It is designed for digital logic applications and offers high performance and flexibility.

Characteristics: - High-density programmable logic device - Low power consumption - Fast propagation delay - Wide operating voltage range - Flexible pin configuration

Package: The LC4256B-5T176I is available in a 176-pin Thin Quad Flat Pack (TQFP) package, which provides ease of handling and installation.

Essence: This IC serves as a versatile solution for implementing complex digital logic functions in various electronic systems. It allows users to program the device according to their specific requirements, enabling customization and optimization of the logic design.

Packaging/Quantity: The LC4256B-5T176I is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Maximum number of usable macrocells: 256
• Maximum number of user I/O pins: 128
• Operating voltage range: 3.3V to 5V
• Propagation delay: <10 ns
• Operating temperature range: -40°C to 85°C
• Package dimensions: 20mm x 20mm

Detailed Pin Configuration

The LC4256B-5T176I has a total of 176 pins, each serving a specific function within the device. The pin configuration is as follows:

(Pin diagram goes here)

Functional Features

1. Programmability: The LC4256B-5T176I can be programmed using industry-standard hardware description languages (HDL) such as VHDL or Verilog. This allows for the implementation of complex digital logic functions.

2. High-Density Logic: With a maximum of 256 macrocells, this IC offers a high level of integration, enabling the realization of intricate logic designs within a single device.

3. Flexible I/O Configuration: The device provides 128 user I/O pins that can be configured to support various input and output requirements, enhancing its versatility in different applications.

4. Low Power Consumption: The LC4256B-5T176I is designed to operate with low power consumption, making it suitable for battery-powered devices or energy-efficient systems.

Advantages and Disadvantages

Advantages: - High-density integration - Flexible pin configuration - Low power consumption - Fast propagation delay - Wide operating voltage range

Disadvantages: - Limited number of macrocells compared to higher-end CPLDs - Relatively small package size may limit the complexity of designs

Working Principles

The LC4256B-5T176I operates based on the principles of programmable logic. It consists of an array of configurable logic blocks (CLBs) interconnected by programmable interconnects. The CLBs contain look-up tables (LUTs), flip-flops, and other components that can be programmed to implement desired logic functions.

During operation, the device reads the programming instructions stored in non-volatile memory and configures the internal circuitry accordingly. This allows the user to define the behavior of the device and create custom logic designs.

Detailed Application Field Plans

The LC4256B-5T176I finds applications in various fields, including:

1. Embedded Systems: It can be used in embedded systems to implement control logic, interface protocols, and data processing functions.

2. Communications: The device can be employed in communication systems for protocol conversion, signal processing, and data routing.

3. Industrial Automation: It is suitable for industrial automation applications, enabling the implementation of complex control algorithms and system monitoring.

4. Consumer Electronics: The IC can be utilized in consumer electronics devices such as gaming consoles, smart appliances, and multimedia systems to perform various digital logic functions.

Detailed and Complete Alternative Models

1. LC4032B-5T176I: A lower-density alternative with 32 macrocells, suitable for less complex designs.
2. LC4312B-5T176I: A higher-density alternative with 512 macrocells, offering increased capacity for more intricate logic designs.
3. LC4128B-5T176I: An intermediate-density alternative with 128 macrocells, providing a balance between complexity and cost-effectiveness.

These alternative models cater to different design requirements and offer varying levels of integration and functionality.

In conclusion, the LC4256B-5T176I is a high-density programmable logic device that provides flexibility, low power consumption, and fast performance. Its versatile nature makes it suitable for a wide range of applications in embedded systems, communications