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参数资料
| 型号： | VK204-25-USB-E |
| 厂商： | Matrix Orbital |
| 文件页数： | 10/47页 |
| 文件大小： | 2507K |
| 描述： | VF CHARACTER DISPLAY 20X4 USB |
| 产品变化通告： | 12C Displays Change 11/Oct/2011 |
| 标准包装： | 1 |
| 系列： | VK204-25 |
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18
Common Features
General Purpose Outputs
Figure 18: GPO Header
Table 16: GPO Pinout
Pin
Function
Pin
Function
1
GPO 1
8
Gnd
2
GPO 1
9
Gnd
3
GPO 1
10
Gnd
4
GPO 1
11
Gnd
5
GPO 1
12
Gnd
6
GPO 1
13
Gnd
7
Vcc
14
Gnd
A unique feature of the LVK204-25
is the ability to control relays*
and other external devices using one
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:
If connecting a relay, be sure that it is fully clamped using a diode and capacitor in order to absorb any
electro-motive force (EMF) which will be generated.
Dallas One-Wire Connector
Figure 19: Dallas One-Wire Connector
Table 17: Dallas One-Wire Pinout
Pin
Function
1
Vcc
2
D
3
Gnd
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.
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