RE: Threshold of the ports:

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??? 10/20/00 06:50 Read: times	#5869 - RE: Threshold of the ports:
	Hi Simon, its only mathematics: I TL <= 650µA, V IL <= 0.2 VCC - 0.1 = 0.9V So a pull down must be below 0.9V / 650µA = 1.3kOhms V IH >= 0.2 VCC + 0.9 = 1.9V So you need 1.3k / 1.9 * (5 - 1.9) = 2.1kOms to drive high. Its not true: "I have a computer, why I need mathematics". Mathematics important forever !!! Peter

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Threshold of the ports:              01/01/70 00:00
RE: Threshold of the ports:              01/01/70 00:00
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RE: Threshold of the ports:              01/01/70 00:00
RE: Threshold of the ports:              01/01/70 00:00

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Topic	Author	Date
Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
*RE: Threshold of the ports:*		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
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RE: Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00
RE: Threshold of the ports:		01/01/70 00:00