Question: IOF register and Xf pins: At reset, a customer wants to have both pins pulled low with a 330 ohm resister. Does this cause any problem? Can the output drivers for these pins drive this load?

Answer: The maximum drive current, IOH, is only 300uA. The required current to drive a 330 ohm resister to 2.4 V is about 7.3 mA. The resistance would need to be at least 8 kohm for the driver to drive a TTL voltage level.


Device: TMS320C3x
Category: Device Information
Detail: Pin Configuration
Title: IOF register and Xf pins
Source: Case from the TMS320 Hotline
Date: 06/19/97
GenId: 0003215


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