Hi, we have build a system with the LPC2119, where we connect a 5V Signal to a GPIO. Now when the system starts, the 5V is present a little bit earlier than the 3.3V. Could this be a problem for the device, because in the Limiting Values for this device the 5V tolerance is only specified when the 3.3V is present. Another question is about unused and therefor open GPIO pins. I could not find any information, if the GPIO have internal pullups and assume they have none. Should this unused pins be set to outputs and be driven to i.e. high level? One more is for the Philips engineers, watching this list. It would be _very_ nice, if at least the CAN controller equipped devices could be specified to run at 64MHz. Baudrate calculation often needs something, which is a multiple of 16MHz. Thanks for any information! Gerhard -- +++ GMX - Die erste Adresse f\ufffdr Mail, Message, More +++ 1 GB Mailbox bereits in GMX FreeMail http://www.gmx.net/de/go/mail
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[lpc2000] LPC2119 GPIO 5V tolerance
2005-04-21 by Gerhard Uttenthaler
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