This document describes the features and characteristics of the Noritake Itron VF D module GU140x16J-7806A, including 140x16 dot graphic display, single 5V supply, high brightness blue green display, operating temperature -40°C to +85°C, 3 multi-sized fonts, and 4/8 bit parallel LCD and serial interfaces.
The GU140x16J-7806A is a 140 × 16 dot‑graphic vacuum‑fluorescent display module with blue‑green illumination. It includes built‑in drivers, a micro‑controller, refresh RAM, and supports both 4/8‑bit parallel and serial interfaces. The module operates from a single 5 V supply and is compatible with standard LCD command sets.
The manual provides detailed electrical and optical specifications, wiring diagrams, and a full command reference for parallel, asynchronous serial, and synchronous serial communication. It also describes extended graphic commands, port configuration, and reset procedures for developers integrating the VFD into equipment.
| Power Supply Voltage | 5.0 VDC ±5 % |
|---|---|
| Power Supply Current | 250 mA (typical) |
| Logic High Input (VIH) | 0.8 × VCC min |
| Logic Low Input (VIL) | 0.6 VDC max |
| Luminance | 1000 cd/m² (typical) |
| Colour of Illumination | Blue‑Green (filter) |
| Operating Temperature | -40 °C to +85 °C |
| Storage Temperature | -40 °C to +85 °C |
| Operating Humidity | 20 % to 80 % RH @ 25 °C |
It requires a 5.0 VDC supply with a tolerance of ±5 %.
The module operates from –40 °C up to +85 °C.