Lpc2000

--- In lpc2000@yahoogroups.com, "Chris" <chris_e_gr@y...> wrote:
> What's the best way to drive 5v logic with the LPCxxxx GPIO?  Pull 
up 
> resistors?  I seem to remember reading somewhere about using pull-
up 
> resistors, but I don't see any information in the LPC2106 reference 
> manual on how to put the outputs in open-drain mode.  I'd 
appreciate 

You should be OK just driving the 5V logic from the outputs, TTL has 
a 2.4V threshold.

Leon