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The OOPic is designed to be used in embedded applications.
These are applications in which a stand-alone processor is required
to control some form of hardware. To accommodate this, the OOPic has
thirty-one I/O lines that can be used in various ways. Each of the
thirty-one physical I/O lines can both sink and source 25mA. I/O Lines
8 – 15 have an internal pull-up resistor that can be activated with
the Pullup property of the OOPic
Object. I/O Lines 16 – 31 are Schmidt Trigger type inputs when in
the input mode. These I/O lines are controlled by a set of special
Objects referred to as Hardware Objects.
The Following table shows the electrical characteristics for all the OOPic's I/O lines.
| Output Voltage when I/O line is set to output 0. |
0 Volts |
| Max current supplied when I/O line is set to output 0. |
25 Ma |
| Output Voltage when I/O line is set to output 1. |
+5 Volts |
| Max current supplied when I/O line is set to output 1. |
25 Ma |
| Max current supplied on ALL I/O lines combined |
200 Ma |
The voltage regulator on the OOPic is a TO-92 case 7805 +5 Volt regulator and is rated at 100 Ma. If more power is needed, a +5 voltage source can be supplied on the +5 lines of the 40 Pin I/O connector.
Hardware Objects are Objects that encapsulate
the functionality of the physical hardware circuits within the OOPic.
They interface with the physical hardware circuits connected to the
OOPic and provide an application program with a hardware interface
that has the capability of controlling and respond to that hardware.
Hardware Objects are the one and only method the OOPic uses to provide hardware I/O. |
