GU128x8F-K660A7 is a 128x8 high brightness dot graphic display module produced by NORITAKE ITRON. It adopts single 5V DC power supply, supports 5x7 ASCII and European fonts, and has asynchronous and SPI serial interfaces.
The GU128x8F-K660A7 is a high‑brightness 128 × 8 dot graphic VFD display module that includes the VFD glass, VF drivers, a 5 V DC supply microcontroller, and a transformer‑less DC/DC converter. It supports asynchronous and SPI serial interfaces, an integrated IR keyboard receiver, and terminal mode with user‑definable edit fields.
The datasheet lists detailed electrical parameters such as a 5.0‑5.5 V supply voltage, 150 mA display‑on current, and logic level thresholds, as well as optical specifications like 700 cd/m² luminance and a blue‑green illumination color. Pin assignments for both asynchronous and synchronous interfaces, reset timing, and mechanical dimensions are also provided.
| Display Area | 84.5 × 6.0 mm |
|---|---|
| Dot Size / Pitch | 0.5 × 0.6 mm / 0.66 × 0.77 mm |
| Luminance | 700 cd/m² (typical) |
| Colour of Illumination | Blue‑Green (505 nm) |
| Operating Temperature | -40 °C to +85 °C |
| Storage Temperature | -40 °C to +85 °C |
| Operating Humidity | 20 % to 85 % RH @ 25 °C |
| Supply Voltage (VDD) | 5.0 V – 5.5 V |
| Supply Current (display on) | 150 mA |
| Supply Current (display off) | 30 mA |
| Logic High Input Voltage | 3.0 V |
| Logic Low Input Voltage | -0.5 V to 1.5 V |
| Logic High Output Voltage | 4.2 V |
| Logic Low Output Voltage | 0.6 V |
| Mounting Hole Diameter | 3.0 mm |
The module operates from –40 °C to +85 °C.
It requires a supply voltage between 5.0 V and 5.5 V.