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04/23/01 06:53
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#11031 - Analog Comparator of 89C2051
I want to use "precission analog comparator" input on AT89C2051, pin P1.0 and P1.1. Does anyone have done that? Does it still require external pull-up ?

Does anyone know a cheap circuit/concept of detecting smoke ? The output of just high or low state is enough.

List of 6 messages in thread
TopicAuthorDate
Analog Comparator of 89C2051            01/01/70 00:00      
RE: Analog Comparator of 89C2051            01/01/70 00:00      
RE: Analog Comparator of 89C2051            01/01/70 00:00      
RE: Analog Comparator of 89C2051            01/01/70 00:00      
RE: Analog Comparator of 89C2051            01/01/70 00:00      
RE: Analog Comparator of 89C2051            01/01/70 00:00      

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