This document describes the features and characteristics of the Noritake ITRON VFD module GU280x32D-7806A, including 280x32 dot graphic display, single 5V supply, high brightness blue green display, operating temperature range of -40°C to +85°C, 6 multi-sized fonts, 4/8 bit parallel LCD and serial interfaces, etc.
The GU280x32D-7806A is a 280 × 32 dot graphic vacuum fluorescent display module with a blue‑green illumination. It operates from a single 5 V supply and offers both 4‑bit/8‑bit parallel interfaces and asynchronous/synchronous serial interfaces. Electrical specifications, pin assignments, and mounting details are listed, along with environmental limits such as operating temperature from –40 °C to +85 °C.
The manual describes the LCD‑compatible command set, including data write/read commands, display control, cursor handling, and extended graphic commands for drawing images, filling areas, and outlining boxes. It also covers port configuration, serial communication timing, and reset procedures, providing the information needed to integrate the module into equipment.
| Luminance | 500 cd/m² (typical) |
|---|---|
| Colour of Illumination | Blue‑Green (filter for colours) |
| Operating Temperature | -40 °C to +85 °C |
| Power Supply Voltage | 5.0 V DC ±5 % |
| Power Supply Current | 400 mA typical (VCC=5 V) |
| Logic High Input (VIH) | 0.8 V DC min (VCC=5 V) |
| Logic High Output (VOH) | 3.8 V DC min (I_OH = 1.5 mA) |
The module operates from –40 °C to +85 °C.
Brightness is set with the command byte where 0x00 = full brightness, 0x01 = 75 %, 0x02 = 50 %, and 0x03 = 25 %.