VK202-25 Matrix Orbital, VK202-25 Datasheet - Page 9

• Manufacturer Part Number: VK202-25
• Description: VFD ALPHA/NUM DISPL 20X2 SER/I2C
• Manufacturer: Matrix Orbital
• Series: VK202-25r

Specifications of VK202-25

• Outline L X W X H: 116.00mm x 37.00mm x 29.48mm
• Viewing Area: 89.75mm L x 11.50mm W
• Display Format: 20 x 2
• Display Type: Character
• Format: 5 x 7 Dots
• Character Size: 4.70mm H x 2.40mm W
• Interface: Serial
• Operating Temperature: -20°C ~ 70°C
• Product: Character Display Modules
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 29.48 mm
• Operating Temperature Range: - 20 C to + 70 C
• Dot Format: 5 x 7
• Viewing Area (w X H): 89.75 mm x 11.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Details
• Other names: 635-1020

2.1.1.1 Five Volt Modules
If the VK202-25 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 VK202-25 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 VK202-25 when it's installed in a PC. The cable is wired as shown in Figure 2-4 below. Note
that this connector does not provide connections for I
2.1.1.2 Wide Voltage Range Modules
Note: Do not use this cable unless your display module has the "wide voltage range" option (option V). Use
of the 12 volt power cable with 5 volt modules will damage the module.
The 12 volt power cable is designed for use with wide voltage range display modules mounted in a PC.
Wiring required for the 12 volt power connector is shown in Figure 2-5 below.
VK202-25 rev. 05
Pin 2
Pin 3
Pin 4
SCL (I
SDA (I
Ground
2
2
C clock)
C data)
Figure 2-3 Power Connector wiring differences
Figure 2-4 Power Adapter Cable
2
9
C.