I have had problems with the MAX232 at high speeds below 3.5 v ----- Original Message ----- From: "Paul Hutchinson" To: Sent: Friday, November 15, 2002 10:45 AM Subject: Re: [EE]: 3.3Volt for MAX 232 > If you do not believe the specs provided by the manufacturer of the chip > then why are you using that manufacturers product? > > If the MAX232 worked fine at 3.3V over time/temperature/output load/etc... > don't you think Maxim would say so? They certainly could sell more chips if > they did say so. > > Paul > > > -----Original Message----- > > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Soon Lee > > Sent: Friday, November 15, 2002 10:39 AM > > > > I was think when the voltage is at 5volts the voltage double on board the > > Max 232 will create a +10V and -10V > > when i use 3.3 V the value is at +-6.6volt. > > > > I think as long as the PC accept the value of the output then the data can > > be read. any way the RS232 protocol will not only work at +-10V but at a > > range > > > > > > -5 to -15 Volts 5 -to 15 Volts > > > > therefore as long as the volt produce is between the acceptable range i > > think is safe. > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body