Lpc2000

At 06:17 PM 12/11/04 +0000, you wrote:
>Well...just to let you know..at least Texas Instrument MAX232 accepts
>2V MIN as a High-Level Input Voltage
>and 0.8V MAX fot TTL as a Low-Level Input Voltage. So I will test
>MAX232 and put a 3.3V Zener at the receiver output of the MAX232,
>just in case... Or should the RX and TX pin of the UART in the
>LPC2106 be 5V compatible?

You shouldn't need the zener.  The max for the 5V tolerant inputs on the 
210x is 5.5V (as long as there is power to the I/O supply [3.3V]), abs max 
of 6V.  That'll save a resistor and a zener.  Not that they'd be that 
expensive to add.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III