User Manual

© Sealevel Systems, Inc.
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PIO-48.PC104 User Manual
Electrical Characteristics
The PIO-48.PC104 uses 74LS245 octal bi-directional transceivers to provide TTL
input/output capabilities. Each bit is pulled to +5V through a 10K ohm pull-up
resistor to insure each bit is at a known state when not driven.
Specifications
Inputs
 Logic High: Min 2VDC
 Logic Low: Max 0.8VDC
Outputs
 Logic High: Min 2VDC @ 15 mA
 Logic Low: Max 0.55VDC @ 24 mA
Recommended Operating Conditions
 Inputs: Min 0V
 Inputs: Max 5.25V
 Source: 15mA
 Sink: 24mA
Temperature Range
 Operating: 0°C – 70°C
 Storage: -50°C – 105°C
Power Requirements
 +5VDC @ 794mA
Physical Dimensions
 Length: 3.550 inches (9.017cm)
 Height: 3.775 inches (9.589cm)