LC75822WD-E

Product Overview

Category: Integrated Circuit (IC)

Use: The LC75822WD-E is a versatile integrated circuit primarily used for driving liquid crystal displays (LCDs). It provides a comprehensive solution for controlling and displaying information on LCD panels.

Characteristics: - High compatibility with various LCD types - Low power consumption - Wide operating voltage range - Built-in display RAM - Multiple display modes - On-chip oscillator for timing control

Package: The LC75822WD-E is available in a compact and durable package, ensuring easy integration into electronic devices.

Essence: This IC serves as a crucial component in LCD-based systems, enabling the efficient and accurate display of information.

Packaging/Quantity: The LC75822WD-E is typically packaged in trays or reels, with quantities varying based on customer requirements.

Specifications

The LC75822WD-E offers the following specifications:

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Display Data RAM: 80 x 8 bits
• Maximum Segment Outputs: 80
• Maximum Common Outputs: 16
• Oscillator Frequency: 455 kHz

Detailed Pin Configuration

The LC75822WD-E features a pin configuration as follows:

1. VDD: Power supply voltage
2. VSS: Ground
3. OSC: Oscillator input
4. M: Mode select input
5. CS: Chip select input
6. WR: Write enable input
7. RD: Read enable input
8. RESET: Reset input
9. VLCD: LCD drive voltage
10. V0: Contrast adjustment voltage
11. SEG1-SEG80: Segment outputs
12. COM1-COM16: Common outputs

Functional Features

The LC75822WD-E offers the following functional features:

• Display data RAM for storing display information
• Multiple display modes, including static, blinking, and scrolling
• Built-in oscillator for precise timing control
• On-chip voltage booster for LCD drive voltage generation
• High compatibility with various LCD types, including segment and dot matrix displays

Advantages and Disadvantages

Advantages: - Versatile and compatible with a wide range of LCDs - Low power consumption, suitable for battery-powered devices - Integrated display RAM reduces external memory requirements - Flexible display modes cater to different application needs - Reliable performance in varying temperature conditions

Disadvantages: - Limited maximum segment and common outputs may restrict complex display configurations - Lack of built-in graphics capabilities limits advanced graphical displays

Working Principles

The LC75822WD-E operates by receiving input data and control signals from a microcontroller or other external sources. It processes the received data and generates appropriate signals to drive the LCD segments and commons. The on-chip oscillator ensures accurate timing control, while the integrated display RAM stores the display information.

Detailed Application Field Plans

The LC75822WD-E finds applications in various fields, including but not limited to: - Automotive instrument clusters - Home appliances (e.g., microwave ovens, washing machines) - Industrial equipment (e.g., control panels, measurement devices) - Consumer electronics (e.g., audio systems, digital cameras)

Detailed and Complete Alternative Models

1. LC75821WD-E: Similar to LC75822WD-E, but with reduced segment and common outputs.
2. LC75823WD-E: Enhanced version with additional features such as built-in graphics capabilities.
3. LC75824WD-E: Higher segment and common output count for more complex display configurations.

These alternative models provide options based on specific application requirements, allowing designers to choose the most suitable IC for their needs.

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