equivalent for an IC - Electronic Circuits Projects Diagrams Free

desperadogear · 19th August 2006, 04:53 PM

can somebody help me with the equivalent of DS275 Ic.

schematic , pin diagram attached

im planning to build a programmer for 89c51/52
http://chaokhun.kmitl.ac.th/~kswichit/easy2/easy2.htm
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

1Steveo · 19th August 2006, 05:45 PM

Look at the links on the page !

hjames · 19th August 2006, 06:06 PM

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 http://www.electro-tech-online.com/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

desperadogear · 19th August 2006, 09:39 PM

thanks a lot hjames. That answers my question

Ron2 · 31st October 2009, 03:19 AM

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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19th August 2006, 04:53 PM	#1
desperadogear	equivalent for an IC can somebody help me with the equivalent of DS275 Ic. schematic , pin diagram attached im planning to build a programmer for 89c51/52 http://chaokhun.kmitl.ac.th/~kswichit/easy2/easy2.htm 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 Attached Thumbnails __________________ impossible says i'm possible

19th August 2006, 05:45 PM	#2
1Steveo	Look at the links on the page !

19th August 2006, 06:06 PM	#3
hjames	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 http://www.electro-tech-online.com/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

19th August 2006, 09:39 PM	#4
desperadogear	thanks a lot hjames. That answers my question __________________ impossible says i'm possible

31st October 2009, 03:19 AM	#5
Ron2	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.