Ochrana logickych vstupu

[Snail Instruments]

Resim tento ukol - jakou primerenou ochranu poskytnout 'TTL' vstupum
pristroje. Zatim jsou pouzity primo vstupy PICu, akorat pres maly odpor
~100R (PIC ma ocharnne diody na VSS a VDD). Ke vstupum budou pripojeny
nejake jine aparatky nestinenym kabelem delky tak 2m. Prostredi - chemicke
laboratore.

J. Hanzal


=======================================================================
Electronical devices for chemical laboratory, custom electronics design
-----------------------------------------------------------------------
Snail Instruments                      Josef Hanzal, M. S.
Vojanova 615                           phone/fax: +420-311-24433
266 01 Beroun                          e-mail: snail@iol.cz
Czech Republic                         URL: http://www.vitrum.cz/snail/
=======================================================================