Georg Hager wrote: > Greetings! > > In order to drive an IR LED, I'd like to sink currents of about 100mA for > short periods of time into 16F84 output pins. As this is not possible with > a single pin, can I just short a couple of pins to get more sink current? > Or is there some danger afflicted with it (apart from accidentally > giving different logic levels out to the connected pins ;-)? The PIC's are CMOS devices (That's why the power pins are markedVdd & Vss instead of Vcc and Vee), so theoretically, you could. I, however, wouldn't. I't easy enough to use a transistor for the job. -- Friendly Regards Tjaart van der Walt mailto:tjaart@wasp.co.za Add your voice !! Vote at the Great G Com Public Vote. Go to : http://www.wasp.co.za/~tjaart/gcomvote.html |--------------------------------------------------| | WASP International | |R&D Engineer : GSM peripheral services development| |--------------------------------------------------| |SMS mailto: 0832123443@wasp.co.za (160 chars max)| | http://www.wasp.co.za/~tjaart/index.html | |Voice: +27-(0)11-622-8686 Fax: +27-(0)11-622-8973| | WGS-84 : 26¡10.52'S 28¡06.19'E | |--------------------------------------------------|