VK204-25-422 Matrix Orbital, VK204-25-422 Datasheet - Page 18

• Manufacturer Part Number: VK204-25-422
• Description: VF CHARACTER DISPLAY 20X4 RS422
• Manufacturer: Matrix Orbital
• Series: VK204-25r

Specifications of VK204-25-422

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Common Features
General Purpose Outputs
A unique feature of the LVK204-25 is the ability to control
of six General Purpose Outputs. Each can source up to 20mA of current at five volts when on or sink
10mA at zero volts when off. The two row, fourteen pin header can be interfaced to a number of female
connectors to provide control to any peripheral devices required.
*Note:
electro-motive force (EMF) which will be generated.
In addition to the six general purpose outputs the LVK204-25 offers an Optional Dallas One-Wire bridge,
to allow for an additional thirty two one-wire devices to be connected to the display. This header can be
populated with a Tyco 173979 connector at an added cost by custom order only. Please use the Contact
section to request for more information from the Matrix Orbital sales team.
1.1.
Dallas One-Wire Connector
If connecting a relay, be sure that it is fully clamped using a diode and capacitor in order to absorb any
Figure 19: Dallas One-Wire Connector
Figure 18: GPO Header
relays*
Pin
1
2
3
4
5
6
7
Table 14: Dallas One-Wire Pinout
and other external devices using one
Function
Table 13: GPO Pinout
GPO 1
GPO 1
GPO 1
GPO 1
GPO 1
GPO 1
Pin
Vcc
1
2
3
Function
Pin
Gnd
10
11
12
13
14
Vcc
8
9
D
Function
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
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