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Are there any pull-ups required on the Mini-ACE™ RT address signals?

April 26, 2017address mini-ace™ RT signals

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Are there any pull-ups required on the Mini-ACE™ RT address signals?

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A. The Mini-ACE™’s RT address signals include internal pull-ups. Actually, these are current sources (from +5V), with the current values between approximately 50 and 400 µA. For best noise immunity, the RT address inputs should be connected directly to either +5V or LOGIC GROUND. In particular, pulldown resistors should not be used.