Logic Level Compatibility

j777

New Member
I'm working on a project that uses an ATMEGA32L uC (3.3V supply) and requires a couple high current outputs. To accomodate the requirement of the outputs I'd like to use a ULN2003A darlington transistor array but my concern is that the logic levels of the ATMEGA32L and ULN2003A aren't completely compatible (VOH in particular). Since I'm just a beginner, would somebody mind commenting on the compatibility between the outputs of the ATMEGA32L (3.3V supply) and the inputs of the ULN2003A?


Datasheets:
http://www.atmel.com/dyn/resources/prod_documents/doc2503.pdf
**broken link removed**


Thanks
 
You should have no problems. VI(on) for ULN2003A is
2.4V max @ Ic=200mA
2.7V max @ Ic=250mA
3.0V max at Ic=300mA.
 
Thank you for confirming that for me. I appreciate you taking the time to look at those datasheets.
 
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