This product is a 280x16 dot graphic VFD module with single 5V supply, high brightness blue green display, operating temperature of -40°C to +85°C, 3 multi sized fonts and 4/8 bit parallel LCD and serial interfaces.
This handbook describes the GU280x16G-7806A dot‑graphic vacuum fluorescent display module, including its electrical and optical specifications, mechanical dimensions, and environmental limits. It outlines the 4‑bit and 8‑bit parallel interfaces as well as asynchronous and synchronous serial communication options.
The document also contains a complete command set compatible with standard LCD controllers, extended graphic commands for drawing images, area fill, invert and outline functions, and detailed timing diagrams for parallel and serial data transfers. Port I/O configuration and extended serial commands are covered for advanced host control.
| Operating Temperature | -40°C to +85°C |
|---|---|
| Storage Temperature | -40°C to +85°C |
| Luminance | 500 cd/m² (typ.) |
| Display Area | 187.05 x 110.00 mm |
| Dot Size / Pitch | 0.34 x 0.5 mm |
| Power Supply Current (ICC) | 400 mA typ. |
| Logic High Input (VIH) | 0.8 VDC min. |
| Logic Low Input (VIL) | 0.2 VDC min. |
| Logic High Output (VOH) | 3.8 VDC min. |
| Logic Low Output (VOL) | 0.6 VDC min. |
The module operates from –40 °C to +85 °C.
It supports 4‑bit or 8‑bit parallel interfaces with pins for VCC, GND, RS, RW, and data lines D4‑D7 (4‑bit) or D0‑D7 (8‑bit).
The Clear Display command is 01H.
A hardware reset requires at least an 8 ms low‑high‑low transition, or a 3 ms reset when using jumper J2 pin 3.