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 Post subject: MCP120 vs DS1813
PostPosted: Tue Jan 03, 2017 2:23 am 
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Anyone used the Microchip MCP130 for reset? http://www.microchip.com/wwwproducts/en/MCP130

Prices are about ~.50 where the DS1813 is about $2.50

http://www.mouser.com/ProductDetail/Max ... pUOPq17hJ0

http://www.mouser.com/All-Manufacturers ... 30&FS=True


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 Post subject: Re: MCP120 vs DS1813
PostPosted: Tue Jan 03, 2017 2:44 am 
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Joined: Thu May 28, 2009 9:46 pm
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EugeneNine wrote:

The DS1813 does everything that the MCP130 does, plus responds to the reset line being grounded, which it appears the MCP130 can't do. In other words, if you ground the /RESET output of the DS1813 it will go through the full reset sequence, same as what happens at power on. Hence you can hook up a push button to /RESET and you will get a clean reset no matter how much contact bounce occurs. The MC(130 doesn't appear to have that capability.

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 Post subject: Re: MCP120 vs DS1813
PostPosted: Tue Jan 03, 2017 3:21 am 
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In general they are fairly similar, sans the reset time (150ms vs 350ms) and apparent lack of adding a reset switch. As I'm also looking at some other I/O devices which have a active high reset, I'm now looking at the TI TL7705A. It has both active high and low open collector outputs and is a bit more flexible but does require a few additional parts. It's also less expensive listed for $0.74 at Mouser.

http://www.mouser.com/ProductDetail/Tex ... TL7705ACP/

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