GLK12232-25-SM Matrix Orbital, GLK12232-25-SM Datasheet - Page 14

• Manufacturer Part Number: GLK12232-25-SM
• Description: LCD Graphic Display Modules & Accessories White Background Blue Text
• Manufacturer: Matrix Orbital

Specifications of GLK12232-25-SM

• Pixel Density: 122 x 32
• Module Size (w X H X T): 86 mm x 35 mm x 14.4 mm
• Viewing Area (w X H): 60.2 mm x 18 mm
• Backlighting: White
• Background Color: Blue, White
• Operating Temperature Range: - 20 C to + 70 C
• Attached Touch Screen: No
• Product: Graphic LCD Module
• Style: LCD Graphic Display
• Interface: RS-232, I2C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

high current such as a relay, it must have an internal resistance greater than 250 ohms, or must be current
limited to 100 mA by means of a suitable resistor.
Matrix Orbital
The two outputs differ slightly in specification;
• G1 provides an output which is switched LOW when ON. When G1 is OFF it is pulled up to +5V
• G2 provides an output which is switched LOW when ON. When G2 is OFF it is pulled up to +5V,
Both outputs are referenced to ground. If the device which is being driven by a GPO requires a relatively
through 150 kohms. In other words it can only be used to ’ground’ an external device. Maximum
current is 250 mA.
supplied by the module. Maximum current is 250 mA.
NOTE
care must be taken when using them. For instance if the external device is a relay it must
be fully clamped using a diode and capacitor to absorb any generated back electro-motive
force (EMF).
The GPOs do not have any over current or over / under voltage protection so
Figure 9: GPO Configuration
Figure 10: Clamping a Relay
GLK12232-25-SM
10