[SI-LIST] Re: Curve Tracing IO pins at high state
- From: "Tom Dagostino" <tom@xxxxxxxxxxxxx>
- To: <a.ingraham@xxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Fri, 21 Nov 2003 23:31:34 -0800
Is there power on the DUT????
Tom Dagostino
Teraspeed Consulting Group LLC Teraspeed Consulting Group LLC
2926 SE Yamhill St. Device Modeling Division
Portland, OR 97214 13610 SW Harness Lane
Beaverton, OR 97008
http://www.teraspeed.com 503-430-1065
tom@xxxxxxxxxxxxx
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Ingraham, Andrew
Sent: Friday, November 21, 2003 6:32 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Curve Tracing IO pins at high state
(I'm sending this again because it doesn't seem to have made it to the list
when I sent it before.)
YK Gian wrote:
> Any other ideas?
Yes. Try tracing just a 50 ohm resistor on the curve tracer.
If this gives you the same results, your curve tracer may be at fault.
If everything is working right, you should see a straight line with the
50 ohm resistor, but it should be diagonal ... not vertical or horizontal
(stuck at 0V or 5V).
Regards,
Andy
> Andy, Patrick, Tom and all,
>
> This time I tried curve tracing a simple HC02(NOR gate) device to get a
> feel how the curve would look like before proceeding to more complex
> device. However, I am getting a similar result to what I've seen earlier.
> I am pretty sure that:-
>
> 1) the curve tracer is connected to the output pin
> 2) I've tried changing the current scale from uA to A
>
> Any other ideas?
>
> Appreciate your help.
> YK Gian
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