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NHD-0420CW-AB3

NHD-0420CW-AB3

Newhaven Display Intl
Character Display Module Passive 5 x 8 Dots OLED Parallel, 8-Bit, I2C, SPI 92.00mm x 31.50mm x 2.50mm
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Overview

The NHD-0420CW-AB3 is a 20x4 character OLED display module featuring a high-contrast blue-on-black interface. Built with the US2066 controller, it supports multiple communication protocols including 4/8-bit parallel, SPI, and I2C, making it highly adaptable for various embedded systems. Its wide operating temperature range of -40 to +85 degrees Celsius and thin 2.5mm profile enable its use in demanding industrial environments.

Why Choose This Part

This module offers superior readability over standard character LCDs due to its self-illuminating OLED pixels and 10,000:1 typical contrast ratio. It operates across a wide supply voltage of 2.7V to 5.5V, simplifying integration into both legacy 5V systems and modern low-power 3.3V designs. The triple-interface support allows engineers to choose between high-speed parallel or pin-efficient I2C/SPI configurations without changing hardware modules.

Applications

Industrial Control Panels
Providing status readouts in extreme temperature environments where traditional LCDs might fail or lose contrast.
Medical Monitoring Equipment
Utilizing the high contrast and wide viewing angles of OLED technology for clear readability of vital signs.
Rack-Mounted Servers
Integrating into slim 1U or 2U enclosures thanks to the compact 2.5mm thickness of the COB package.
Test and Measurement Instrumentation
Displaying multi-line sensor data and configuration menus with a low-power, high-visibility blue text output.

Key Specifications

Dot Size 0.57mm W x 0.57mm H
Interface Parallel, 8-Bit, I2C, SPI
Text Color Blue
Display Mode Passive
Display Type OLED
Viewing Area 72.42mm L x 22.82mm W
Character Size 4.77mm H x 2.97mm W
Display Format 20 x 4
Controller Type US2066
Background Color Black
Character Format 5 x 8 Dots
Voltage - Supply 2.4V ~ 5.5V
Outline L x W x H 92.00mm x 31.50mm x 2.50mm
Number of Characters 80.0
Operating Temperature -40degC ~ 85degC

Getting Started

To begin development, connect the module via I2C or SPI to a microcontroller like an ESP32 or STM32, ensuring the interface selection pins are strapped according to the US2066 datasheet. Use standard character OLED libraries compatible with the US2066 controller to initialize the 20x4 grid. Note that the typical operating current ranges from 70mA to 135mA depending on pixel usage, so ensure your power supply can handle the peak brightness load.

Categories

Displays & Optoelectronics > OLED & LCD Modules Wearables & Medical > Small Displays & Haptics