2004A LCD 20x4 Character Display with Blue Backlight

RS.790

RS.790 RS.

2004A LCD 20x4 Character Display with Blue Backlight

Name: 2004A LCD 20x4 Character Display with Blue Backlight
Brand: Chip.pk
SKU: CP-DSP-LCD2004A
Price: 790.00 PKR
Availability: InStock

RS.790

RS.790 RS.

Product Overview

The 2004A 20x4 Character LCD is a blue backlight alphanumeric display featuring a 16-pin parallel interface, KS0073 or equivalent controller, and 4-bit/8-bit communication. It supports HD44780-compatible character LCD libraries for Arduino, microcontroller and embedded display projects.

Description

The 2004A LCD 20x4 Character Display with Blue Backlight is an alphanumeric LCD module capable of displaying 20 characters on each of 4 lines. Its four-line layout provides useful display space for sensor readings, measurements, menus, system status, messages and other text or numerical information.

The module uses a KS0073 or equivalent controller IC with COB (Chip-on-Board) construction. It features a standard 16-pin parallel interface with D0–D7 data lines and supports both 4-bit and 8-bit communication modes.

The display also supports HD44780-compatible character LCD libraries, making it suitable for Arduino and other microcontroller-based projects when correctly wired and configured. Its blue character display with LED backlight is suitable for embedded systems, instruments, control panels and DIY electronics requiring a multi-line user interface.

Key Features

20 characters × 4 lines display format
Blue character LCD with LED backlight
2004A character LCD module
PCB marking: QC2004A
KS0073 or equivalent controller IC
COB (Chip-on-Board) construction
Standard 16-pin parallel interface
Supports 4-bit and 8-bit communication
Supports HD44780-compatible character LCD libraries
STN/FSTN display mode
Four PCB mounting holes
Suitable for Arduino, microcontroller and embedded display projects
No integrated I2C backpack

Technical Specifications

Specification	Details
Product Type	Alphanumeric Character LCD Module
Model	2004A
PCB Marking	QC2004A
Display Format	20 Characters × 4 Lines
Display Mode	STN/FSTN
Display Color	Blue
Backlight	LED
Controller IC	KS0073 or Equivalent
Controller Package	COB (Chip-on-Board)
Interface	16-Pin Parallel
Communication Mode	4-bit / 8-bit
Data Lines	D0–D7
Control Lines	RS, R/W, E
Library Compatibility	HD44780-Compatible Character LCD Libraries
Module Size (W × H × T)	98 × 60 × 13.8 mm
Viewing Area (L × W)	76 × 26 mm
Viewing Direction	6 o'clock
Character Size (W × H)	2.94 × 4.74 mm
Dot Size (W × H)	0.54 × 0.54 mm
Operating Temperature	-20°C to +70°C
Mounting	4 PCB Mounting Holes
I2C Interface	Not Integrated

Pin Configuration

1-VSS (GND), 2-VDD (Power), 3-VO (Contrast), 4-RS, 5-R/W, 6-E, 7-D0, 8-D1, 9-D2, 10-D3, 11-D4, 12-D5, 13-D6, 14-D7, 15-A (Backlight Anode), 16-K (Backlight Cathode)

Controller & Library Compatibility

The 2004A LCD is specified with a KS0073 or equivalent controller IC using COB construction.

The module supports HD44780-compatible character LCD libraries. This refers to its library/interface compatibility and should not be interpreted as a claim that the physical controller IC is an HD44780.

It can display alphanumeric characters, numbers and supported symbols, while compatible character LCD functionality can also be used for custom characters. The exact built-in character ROM variant is not specified, so we should not advertise a specific full HD44780 character-ROM set.

Applications / Use Cases

The 2004A 20x4 LCD is suitable for:

Arduino display projects
Microcontroller-based projects
Embedded system interfaces
Sensor-data displays
Temperature and humidity monitoring systems
Measurement and instrumentation equipment
Power supply and UPS displays
Electronic control panels
Menu-based user interfaces
Status and diagnostic displays
DIY electronics and prototyping

Compatibility

The module uses a 16-pin parallel interface and supports 4-bit and 8-bit communication. It can be integrated with microcontrollers capable of driving compatible character LCD interfaces.

Support for HD44780-compatible character LCD libraries makes the module suitable for common Arduino character-LCD applications when correctly wired and configured.

Arduino is a compatible application platform; it is not part of the product itself or included in the package.

Package Contents

1 × 2004A 20x4 Blue Character LCD Module

Buy 2004A LCD 20x4 in Pakistan

Buy the 2004A LCD 20x4 character display in Pakistan from Chip.pk for Arduino, microcontroller, embedded systems and electronics projects. This blue backlight LCD provides a 20-character × 4-line display with a 16-pin parallel interface and supports HD44780-compatible character LCD libraries.

FAQs

What is a 2004A LCD?

The 2004A LCD is an alphanumeric character display that provides 20 characters per line across 4 lines. It is useful for displaying text, numerical values, menus, measurements and system-status information in electronics projects.

What controller IC does this 2004A LCD use?

The module is specified with a KS0073 or equivalent controller IC using COB (Chip-on-Board) construction.

Does this 20x4 LCD support HD44780 libraries?

Yes. The module supports HD44780-compatible character LCD libraries. This refers to library and command compatibility; the specified controller IC is KS0073 or equivalent, not an HD44780 IC.

Can I use this 20x4 LCD with Arduino?

Yes. The display can be used in Arduino character-LCD projects through its parallel interface when correctly wired and configured with a compatible character LCD library. An Arduino board is not included with the LCD.

Does this 2004A LCD have an I2C interface?

No integrated I2C backpack is included on the supplied module. It uses a 16-pin parallel interface. An appropriate external I2C interface would be required for an I2C-based connection.