• Size
• mm

• Resolution
• 20x4
• Dot

• Model No.
• HSM02004A

• Product Type
• Mono COB

• Shape of Display
• Bar

• Outline Size
• 98.0 × 60.0 × 12.7
• mm

• Active Area
• 76xx20.4
• mm

• View Angle
• 6 o'clock

• Drive IC
• AIP31066

• Interface
• Parallel

• Touch Screen
• NA

• OP
• -20°C~+70°C
• ℃

• Remark

HSM2004A-13 – 20×4 Character LCD Display (STN Yellow-Green Positive) with 5V Parallel Interface

Product Overview

The HSM2004A-13 LCD module provides four lines of 20 characters each, allowing for detailed text and status information display.

It adopts STN yellow-green (Y-G) positive transmissive technology, offering excellent clarity and brightness in indoor environments.

Driven by an HD44780-compatible controller, it supports 8-bit parallel interface with a standard 16-pin connection, ensuring seamless integration with MCUs such as STM32, Arduino, Raspberry Pi, and 8051.

With a 5V logic supply, low-power LED backlight, and –20°C to +70°C operating range, this module ensures long-term stability in industrial, automotive, and embedded environments.

Key Features

20×4 Character Display (STN-Y/G Positive) – Clear text with bright contrast.

HD44780-Compatible Controller – Standardized parallel interface for MCU communication.

Yellow-Green LED Backlight (5V / 50mA) – Uniform brightness and low power consumption.

Operating Temperature: –20°C ~ +70°C – Reliable in industrial and outdoor conditions.

Compact PCB: 98 × 60 mm – Fits in compact and portable devices.

Simple 5V Power Supply – Easy integration with standard electronics.

RoHS Compliant Design – Environmentally friendly and durable.

Applications

Industrial Control Systems – Multi-line process display and data monitoring.

Test and Measurement Devices – Readouts for analyzers and meters.

Smart Home Interfaces – Display modules for thermostats and wall controllers.

Embedded Devices – Compatible with Arduino, STM32, and microcontroller-based projects.

Technical Specifications