LC7981-E

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LC7981-E

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LCD Drivers

  • メーカーオンセミコンダクター社

  • メーカー品番 #LC7981-E

  • 在庫状況16838

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性

概要

Description

The LC7981-E is a type of LCD (Liquid Crystal Display) controller designed for use in electronic devices that require a graphical display interface. It acts as a bridge between the microprocessor of a device and its LCD module, facilitating the display of text and graphics. The controller typically supports standard display functions, including initializing the LCD, refreshing the screen, and handling graphical data inputs.
Key features of the LC7981-E include support for various display resolutions and character fonts, flexibility in interfacing with different types of microcontrollers or microprocessors, and efficient power management to optimize energy consumption. It usually includes built-in RAM to store display data, command registers for controlling operations, and options to adjust contrast and brightness.
The LC7981-E is commonly used in consumer electronics, industrial equipment, and portable devices, where a reliable and straightforward graphical interface is required. Its ease of use and versatility make it a popular choice for developers looking to implement LCD displays in their products.

Equivalent

The LC7981-E is a dot matrix LCD controller/driver. Equivalent products or alternatives might include the KS0108, ST7920, or SED1520, which are also popular dot matrix LCD controllers. When selecting an equivalent, ensure compatibility with voltage, communication interface, and display size. Always check the datasheets for specific requirements and compatibility.

Features

The LC7981-E is a dot matrix LCD controller that offers several features for efficient display management. It supports a wide range of LCD sizes by offering a flexible interface that can handle different display dimensions, typically up to 80x16 dots for character displays. The controller includes built-in display RAM, which reduces the need for external memory and simplifies circuit design. It supports both 8-bit and 4-bit parallel interface modes, offering flexibility in interfacing with microcontrollers. The LC7981-E provides various command instructions for control operations, including display ON/OFF, cursor positioning, and data writing/reading, enabling easy management of display content. It also features automatic display shifting, which aids in smooth scrolling and display update operations. Additionally, the controller operates over a wide voltage range, making it suitable for various applications. These features make the LC7981-E a versatile and efficient choice for implementing dot matrix LCD displays in embedded systems.

Pinout

The LC7981-E is an LCD driver IC typically used for dot matrix graphic displays. It is designed to control the display operations of LCD panels. The pin count for the LC7981-E is 80 pins.
The functions of these pins are generally related to the following:
1. Power Supply: Pins for VDD, VSS, and voltage reference.
2. Data Input/Output: Pins for interfacing with the MCU or other control logic.
3. Control Signals: Pins for receiving control signals like Read/Write, Chip Select, Data/Instruction, etc.
4. LCD Drive Signals: Pins for driving the rows and columns of the LCD.
5. Oscillator and Timing: Pins related to clock input or synchronization.
These functions enable the LC7981-E to handle various tasks such as display data processing, interfacing with microcontrollers, and directly driving the pixels on an LCD screen. Always refer to the official datasheet for precise pin descriptions and electrical characteristics to ensure correct usage in your application.

Manufacturer

The LC7981-E is manufactured by Sanyo, a Japanese electronics company. Sanyo, founded in 1947, is known for producing a wide range of electronics, including semiconductors, consumer electronics, and home appliances. The company has a history of innovation and has been involved in various sectors of the electronics industry. It operates as a subsidiary of Panasonic Corporation, which acquired a majority stake in the company in 2009.

Application

The LC7981-E is a dot matrix LCD controller/driver, commonly used in applications requiring text and graphics display capabilities. Key application areas include:
1. Industrial Equipment: For control panels and interface displays in machinery.
2. Consumer Electronics: In devices like calculators, remote controls, and digital clocks.
3. Automotive Displays: Used in dashboards and infotainment systems.
4. Medical Devices: For displaying vital information in equipment such as monitors and diagnostic tools.
5. Point of Sale Systems: In cash registers and checkout systems for transaction information.
6. Communication Devices: For user interfaces in radios and telephones.
The LC7981-E is valued for its ability to control large displays with minimal external components.

Package

The LC7981-E is a dot matrix LCD controller/driver IC. It typically comes in a 64-pin QFP (Quad Flat Package), which is a type of surface-mount integrated circuit package.