LC75879PT-H

Product Overview

Category: Integrated Circuit (IC)

Use: LC75879PT-H is a versatile IC primarily used for driving liquid crystal displays (LCDs). It is commonly employed in various electronic devices such as automotive dashboards, industrial control panels, and consumer electronics.

Characteristics: - High-resolution display driver - Low power consumption - Wide operating voltage range - Supports multiple LCD panel types - Built-in display RAM - Serial interface for easy communication with microcontrollers

Package: LC75879PT-H is available in a compact and durable package, ensuring easy integration into different electronic systems. The package provides protection against environmental factors and facilitates efficient heat dissipation.

Essence: The essence of LC75879PT-H lies in its ability to drive LCDs efficiently, enabling the display of clear and vibrant visuals in electronic devices.

Packaging/Quantity: LC75879PT-H is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package varies but is usually sufficient to meet the requirements of small to medium-scale production.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Display Resolution: Up to 256 segments x 8 commons
• Interface: Serial (3-wire)
• Package Type: QFP (Quad Flat Package)
• Package Dimensions: 14mm x 20mm

Detailed Pin Configuration

The LC75879PT-H IC features a total of 64 pins, each serving a specific function. Here is a detailed pin configuration:

1. VDD: Power supply voltage input
2. VSS: Ground reference
3. SDA: Serial data input
4. SCL: Serial clock input
5. /RES: Reset input
6. /CS: Chip select input
7. V0: LCD driving voltage output 8-15. SEG1-SEG8: Segment outputs 16-23. COM1-COM8: Common outputs 24-31. SEG9-SEG16: Segment outputs 32-39. COM9-COM16: Common outputs 40-47. SEG17-SEG24: Segment outputs 48-55. COM17-COM24: Common outputs 56-63. SEG25-SEG32: Segment outputs

Functional Features

• High-resolution display capability, allowing for detailed visuals
• Built-in display RAM eliminates the need for external memory components
• Serial interface simplifies communication with microcontrollers
• Supports various LCD panel types, enhancing versatility
• Low power consumption ensures energy efficiency
• Wide operating voltage range accommodates different power supply configurations

Advantages and Disadvantages

Advantages: - High display resolution enables sharp and clear visuals - Versatile compatibility with different LCD panel types - Integrated display RAM reduces external component requirements - Low power consumption contributes to energy-efficient designs - Wide operating voltage range enhances flexibility in power supply options

Disadvantages: - Limited to serial interface communication, may not be suitable for certain applications requiring parallel interfaces - Availability and pricing may vary depending on the supplier and market demand

Working Principles

LC75879PT-H operates by receiving data through the serial interface (SDA and SCL pins) from a microcontroller or other controlling devices. The received data is stored in the built-in display RAM, which acts as a buffer. The IC then drives the connected LCD panel by sequentially activating the appropriate segment and common outputs based on the stored data. This process results in the desired visual representation on the LCD.

Detailed Application Field Plans

The LC75879PT-H IC finds extensive application in various electronic devices, including:

1. Automotive Dashboards: LC75879PT-H is commonly used in automotive dashboards to drive LCDs that display vital information such as speed, fuel level, and engine status.

2. Industrial Control Panels: The IC enables the creation of user-friendly control panels for industrial machinery, providing operators with clear visual feedback and intuitive interfaces.

3. Consumer Electronics: LC75879PT-H is utilized in consumer electronics like audio systems, home appliances, and gaming consoles to drive LCD displays, enhancing user interaction and information presentation.

Detailed and Complete Alternative Models

• LC75829: A similar IC with lower resolution capabilities but suitable for applications where high resolution is not a requirement.
• LC75839: Offers enhanced features such as built-in key scanning functionality, making it ideal for applications requiring both LCD driving and keypad input.

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

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