>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 02 April 2006 17:20
>To: Microcontroller discussion list - Public.
>Subject: Re: [EE]: looking for retriggerable 555 monostable circuit
>
>
>>  
>>
>I don't agree. The 555 itself costs about 0.25 USD, but the capacitors 
>and resistors
>and extra transistor to create a reliable retriggerable circuit easily 
>pushes it over  $1.50
>USD. I can buy the PIC10F200 for $0.50 USD in 100 qty.

You must use very expensive components!  Generic small signal bipolars are what, a few cents each?  Resistors < 1 cent in any reasonable quantity, leaving only the timing and decoupling caps.  Should be doable for well under $0.50 total IMO.  Of course, the price does rise considerably if timing demands mean that precision R's and C's need to be used.

Regards

Mike

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