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From: | Deane Chadwick |
Subject: | Re: [Paparazzi-devel] CMOS interfacing to TTL |
Date: | Thu, 2 Aug 2007 14:50:44 +1000 |
Deane,
Double check the IO voltage levels in the datasheet for the Maxstream modem. The I/O is 3.3V (but 5V tolerant, meaning TX will drive 3.3V out, and accept 0-5V in) on the philips LPC2148 (Tiny13 1.1 cpu). If your I/O from the Maxstream is 5V TTL then you are safe to interface directly to the Tiny13.
Regards,
Matthew Currie
Deane Chadwick wrote:Hey guys,I was wondering whether we can connect the Maxsteam Xtend straight to the Tiny 1.1 autopilot, or is there interfacing issues with the CMOS and TTL.Thanks Deane
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