Example circuits, Electrical characteristics – Impulse 8009 User Manual

Page 13

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© Sealevel Systems, Inc.

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PIO-96.PCI User Manual

Electrical Characteristics

The PIO-96.PCI 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 0.5VDC @ 24 mA

Temperature Range



Operating:

0°C – 70°C



Storage:

-50°C – 105°C

Power Requirements



+5VDC @ 1A

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