Better than MAX232!

I wanted to share this with the community because I love Arduino and wanted to give something back. ;D I do a LOT of breadboarding and very often need to communicate with my PC. Using a MAX232 is great but all those caps really take up room and get in the way… don’t they??
I began using the MAX233 about a year ago and it is exactly like a MAX232 except… GET READY!.. NO EXTERNAL CAPS!! Go here and check out the data sheet.

It even comes in a DIP package for us breadboarders! I guess there could be some limitations to having internal caps but I haven’t run into any!

Also, Maxim might send you free samples if you have a valid business address!
Go Vertical as Often as Possible

Important distinction, the MAX233 costs about $7.45 for single PDIPs.
The MAX232 costs $0.90 or less and four 1uF caps cost about $0.05 each - and the MAX233 is physically larger (20 pin vs 16 pin).

Thanks for bringing that up. The 233 is way more expensive. I think if it were used more it would come down in price. I do a lot of prototyping so Maxim sends me samples 4 at a time.


After using them so much, I think I would buy them anyway just because I like them. The footprint may be larger but without the caps it takes up much less room on the board.