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programming 3.3V parts

 
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Ringo42



Joined: 07 May 2004
Posts: 263

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programming 3.3V parts
PostPosted: Sun Oct 19, 2008 9:55 am     Reply with quote
I'm using a 16lf876a and the ICD-U40.
My board has a part (pressure sensor) that will only work at 3.3V. When I connect the programmer to the board doesn't it put 5V on the Vcc line (or require 5V be there)?
I don't want to fry the sensor by accidentally putting 5V on it. How do I program the board?
Thanks
Ringo
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Ringo Davis
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Joined: 27 Aug 2008
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Location: Germany

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PostPosted: Sun Oct 19, 2008 10:18 am     Reply with quote
ICD-U40 doesn't drive VCC unless you install a jumper inside the case. ICD-U40 should work with a board supply of 3.3V without problems.
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