Rainbow Electronics NUC100 - Manual (Page 47)

NUC100 Series DATA SHEET
Publication Release Date: May 31, 2010
- 47 - Revision V1.02
5.15 Analog Comparator
5.15.1 Functional Description
NUC100 series contains two comparators. The comparators can be used in a number of different
configurations. The comparator output is a logical one when positive input greater than negative input,
otherwise the output is a zero. Each comparator can be configured to cause an interrupt when the
comparator output value changes.
Note that the analog input port pins must be configured as input type before Analog Comparator
function is enabled.
5.15.2 Features
z Analog input voltage range: 0~5.0V
z Software enabled with hysteresis function
z Two analog comparators with optional internal reference voltage input at negative end
z One comparator interrupt requested by either comparator