Introduction
The DIO-24 provides 24 TTL digital I/O lines. The DIO-24 emulates 8255 mode 0 and has an increased output current of 15 mA (source) and 64 mA (sink) , allowing it to control LED, relay, etc. The DIO-24 consists of three 8 bit bi-directional ports and 2 input lines for interrupt enable and interrupt. The 8 bit ports are named port A(PA),port B(PB) and port C(PC). The port C can be split into two four bit. All ports are configured as inputs upon power-up or reset. The DIO-24 uses 4 consecutive I/O locations in I/O addressing space. The base address is selectable from 200 to 3FF hex. The interrupt signal can be connected to any of the interrupt levels 2 through 7 .
Applications
Ordering Information
PRODUCT SERIES | DESCRIPTION | QNT. | INQUIRY |
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Hardware | |
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Connector | 20-pin box header x 2 50-pin box header x 1 |
Digital Input | |
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Channels | 24 (Bi-Direction) |
Type | 5 V/TTL |
ON Voltage Level | 2.0 V Min. |
OFF Voltage Level | 0.8 V Max. |
Response Speed | 1.0 MHz (Typical) |
Trigger Mode | Static Update |
Digital Output | |
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Channels | 24 (Bi-Direction) |
Type | 5 V/TTL |
Operation Mode | Static Update |
Load Voltage | Logic 0: 0.4 V Max. Logic 1: 2.4 V Min. |
Load Current | Sink: 64 mA @ 0.8 V Source: 32 mA @ 2.0 V |
Response Speed | 1.0 MHz (Typical) |
PC Bus | |
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Type | ISA |
Data Bus | 8-bit |
Power | |
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Consumption | 900 mA @ +5 V |
Mechanical | |
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Dimensions (mm) | 110 x 182 x 22 (W x L x D) |
Environment | |
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Operating Temperature | 0 ~ +60°C |
Storage Temperature | -20 ~ +70°C |
Humidity | 5 ~ 85% RH, Non-condensing |