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difference between max232 and rs232

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max3232 schematic

hi anybody could help me what is the different between rs232 max232 and max3232. i want to make a data cable DLR-3P to connect a nokia phone to the pc but the discription for the DLR-3p is using max3232, unfortunately i can't find a max3232 in my place. so can i replace it with a max 232

appreciate for suggestion
 

max232 vs max3232

You can replace Max3232 with Max232 (1µF + caps), or Max202 (0.1µF caps) or any other chip rthat is RS-232 driver and has and has 232 in its description, for example: ST232CN, ICL232, ADM232 etc..
The main difference between 3232 and 232 is the supply voltage (first 3-5.5, second 5V) and max speed ..
 

max3232 circuit

For your application there should be no differencies (if you have +5V power supply). MAX3232 is a new version of MAX232. It can work from 3.3V to 5V. It is faster (up to 1Mbit), low-power and has ESD protection. That's all. Check corresponding pages on Maxim-IC site:
1. **broken link removed**
2. **broken link removed**
 

max232 max3232

IanP said:
You can replace Max3232 with Max232 (1µF + caps), or Max202 (0.1µF caps) or any other chip rthat is RS-232 driver and has and has 232 in its description, for example: ST232CN, ICL232, ADM232 etc..
The main difference between 3232 and 232 is the supply voltage (first 3-5.5, second 5V) and max speed ..
Click to expand...

appreciate for you help i am intended to make this cable
**broken link removed**

could you help me how to connect or adding capacitor
 

max3232 vs max232

The capacitors are connected in the same way and to the same pins for both ICs: max3232 and 232 (202) .. (drop-in replacement)
 

max3232 max232

you mean so the circuit that i just replace a max232 it would work as the max3232?

appreciate for help
 

max202 max232

That is correct, but for Max232 you will need bigger capacitors (1-10µF) ..
 

nokia max3232

More than cap, you need to notice the power supply. For MAX232 it is 5V and for MAX3232 it is 3.3V!
 

max 232 3232

Johnson said:
More than cap, you need to notice the power supply. For MAX232 it is 5V and for MAX3232 it is 3.3V!
Click to expand...

MAX3232 can take from 3.3V to 5V, so it stronly depends on his schematic.
But I just checked DLR-3P schematic and you are right - he needs MAX3232 (or others 3.3V powered tranceivers). MAX232 will simply not work from 3.3V.
 

max232 replacement

Instead of using any MAX nnn you can build a small circuit as per attached drawing.
It "steals" power from the RS-232 port and translates levels to 3.3V ..
 

replacing max 202 with max232

By the way, the MAX3232 is manufactured by TI too, and the last one, available from Digi-Key is much cheaper. Does anybody compared parst from MAXIM and TI in real application?

Varuzhan
 

difference between max232 and max3232

the max3232 at TI is ssop and tssop package that is not possible for hobby to make circuit base on basic tool
 

max232 max202

Max3232 is SMD Version and 3,3V vorking,but XX232 series IC is 3,3V not work,and big DIP socket IC.
So Com port supply RS232 interface appl is 3232 good solving,but com port via P.S xx232 not stability or don't vork
Sincerely.
 

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