LCD2041 Matrix Orbital, LCD2041 Datasheet - Page 8

• Manufacturer Part Number: LCD2041
• Description: LCD Character Display Modules Yel/Grn Background Black Text
• Manufacturer: Matrix Orbital

Specifications of LCD2041

• Character Count X Line: 20 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Features: I2C LCD with software controlled contrast
• Voltage Rating: 4.75 VDC to 5.25 VDC
• Operating Temperature Range: - 20 C to + 70 C
• Backlight Type: LED Yellow-Green
• Interface: I2C

Connector pinout is as follows:
2.1.1.1 Five Volt Modules
If the LCD2041 is used in a PC it is tempting to plug a spare power connector into the unit. Don't do this!
Wiring for the PC power connector and that required for the LCD2041 are different as shown in Figure 2-3
below.
If you don't want to modify cable wiring yourself, Matrix Orbital can supply an adapter cable designed to
use with the LCD2041 when it's installed in a PC. The cable is wired as shown in Figure 2-4 below. Note
that this cable does not provide connections for I
LCD2041 rev 2
Pin 1
Pin 2
Pin 3
Pin 4
+5.0 VDC (+8 to +15 VDC with wide voltage option)
SCL (I
SDA (I
Ground
2
2
C clock)
C data)
Figure 2-3 Power Connector wiring differences
Figure 2-4 Five volt Power Cable
Figure 2-2 Power connector
1 2
+5 V
GND
+12 V
+5 V
GND
2
C.
8
3
4
PC wiring
Display module wiring