Probably, but you'd have to check the datasheet to determine what current flow it could handle.
Alternatively, use a resistive voltage divider, transistor ( or open-collector logic gate ), with pull-up and you can put a 3V zener across the input.
You won't need a MAX232 as an input buffer to the receiving micro, but you can add an extra level of protection by dropping the incoming 5V signal using one of the methods suggested and buffering it through a logic gate ( 3V supply ) into the receiving micro.
Edited by - hippy on 02/04/2007 15:06:15