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equivalent for an IC

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desperadogear

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can somebody help me with the equivalent of DS275 Ic.

schematic , pin diagram attached



im planning to build a programmer for 89c51/52
**broken link removed**
DS275 is not available and im running short of time as my last date for submission of project is too near. help would be greatly appreciated
 

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A pin compatible part probably isn't available - Dallas semi got acquired by www.maxim-ic.com, and unless you want to try getting a sample directly from them, it's probably easier to work around it.

Use a more standard MAX232 chip (google and you'll find a lot of schematics)

Or look in the https://www.electro-tech-online.com/forums/electronic-projects/ section of the forum for Mike's "Simple RS232-to-TTL Adapter". It's two transistors and a couple resistors and would probably be a functional replacement for the chip.

James
 
I'm looking for a complete on line IC cross ref equivalents list.
For instance - to find an equiv for an MLM324 quad opamp -
Sounds simple enough doesn't it.
 
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