the 555 timer ic chip can be had in a cmos version......7555........2-18 vdc
supply ....radio shack sells these....
give it a try ...................tim
-----Original Message-----
From: Jan Erik Bertram <xirxe@GMX.DE>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Sunday, December 19, 1999 6:07 AM
Subject: Re: TMR1 Problem on 16c74a


>But why do you use a 555 anyway?
>You could take the timer1 for the long time periods without any external
>hardware.
>
>From: "Stephan Kotze" <stephank@IAFRICA.COM>
>To: <PICLIST@MITVMA.MIT.EDU>
>Sent: Sunday, December 19, 1999 12:31 PM
>
>
>> Thanks for the advice, I tried it and traced the problem back to the 555.
>> Boosting the voltage on the 555 to 6V solved the problem
>>
>> Thanks
>> Stephan