NORITAKE ITRON VFD MODULES GU128x64D-K610A8 Dot Graphic VFD Module
The GU128x64D-K610A8 is a 128 × 64 high‑brightness dot graphic VFD display that operates from a single 5 V supply and supports multiple interfaces (asynchronous, SPI, I²C, parallel). It offers four ASCII fonts, proportional mini font, and up to eight user‑definable macros.
The handbook details the electrical and environmental specifications, describes the command set for cursor movement, graphic writes, window control, and brightness adjustment, and explains how to configure the module’s communication mode using the rear push‑button switch. Wiring diagrams and timing information for each interface are also included.
| Supply Voltage (Vcc) | 5.0 V (typ) |
|---|---|
| Supply Current (Icc) | 410 mA (typ) |
| Display Area | 57.45 mm × 28.65 mm |
| Luminance | 800 cd/m² |
| Operating Temperature | -40 °C to +85 °C |
Send the Brightness command (1BH + level) with a level value from F8H (off) to FFH (maximum).
Use the Select Font command (1CH, 1DH, or 1EH) to choose proportional mini, fixed 5×7, or fixed 10×14 fonts.
Apply a low‑level signal to the /RES line; the module clears the display and restores power‑on defaults.