This document provides the specifications and precautions for Densitron display modules.
The document provides complete specifications for the Densitron LM4900 graphic LCD module, including mechanical dimensions, electrical ratings, backlight parameters, and interface pin‑outs. It also lists handling, power‑supply and environmental precautions required to avoid damage to the display.
Key sections cover the module description, mechanical characteristics, absolute maximum ratings, electrical and backlight specifications, command set for 6800/8080 MPUs, timing diagrams, optical performance, and part‑number options for different configurations.
| Package dimensions | 75.0 x 35.0 x 8.6 mm |
|---|---|
| Display format | 100 x 33 pixels |
| Dot size | 0.56 x 0.62 mm |
| Dot pitch | 0.6 x 0.66 mm |
| Active display area | 59.96 x 21.74 mm |
| Viewing area | 67.15 x 25.0 mm |
| Weight | ≈20 g |
| Logic supply voltage (VDD‑VSS) | 0 – 7 V |
| LC driver supply voltage (VDD‑VO) | 0 – 6 V |
| Operating temperature | -10 °C to +60 °C |
| Storage temperature | -20 °C to +70 °C |
| Operating humidity | up to 85 % RH |
| Input "High" voltage (VIH) | 0.7 × VDD |
| Input "Low" voltage (VIL) | 0.3 × VDD |
| Power supply current (IDD) | 1 mA (typ) at VDD=5 V |
| LED backlight input voltage | 6 – 8 V |
| LED backlight input current | 90 – 180 mA |
| Contrast ratio | STN K (typical) |
| Viewing angle | ≥40° |
| Response time (rise/fall) | 150 – 250 ms |
The module is susceptible to electro‑static discharge, must not be plugged or unplugged while powered, and cable length should be kept under 30 cm.
The LED backlight should be driven with a voltage between 6 V and 8 V.
The module operates from –10 °C up to +60 °C.
The package measures 75.0 mm × 35.0 mm × 8.6 mm.