lpcware

Solutions to default pull-up state of I/O pins

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by Scribe on Mon Oct 15 06:17:36 MST 2012
Hi guys,

We've noticed that unlike Atmel chips, NXP LPC1200 I/O defaults to using pull-up in reset state and this doesn't play well with our existing circuitry.

We were wondering if there any common practises users of this chip are deploying to design circuits that have a safe reset state when the chip defaults into pull-up? We're both price and space concious and so the use of buffers etc is unideal.

Many thanks

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