need ft232rl usb to serial port converter

[raman00084]

i need a exact working schematic of ft232rl with max232 ic, i am designing a PCB for usb to rs232 converter i get a lot of circuits in the net but i need the exact working one kindly help.

thank you
regards
kalyan

 

[KlausST]

Hi,

There are a lot of different schematics because there is no one and only solution.
There are many ways..

Best is to look into the datasheets of ft232rl and max232, there you find the information on how to connect each part.
These are correct and reliable schematics.

When you ask for schematic and you get a number of solutions, how do you decide which one is the correct one?

Klaus

 

[nick703]

if u r using FT232rl then u do not need any max232 bro . FT232RL handle communication of uart using any micro controller.

 

[KlausST]

Hi,

if u r using FT232rl then u do not need any max232 bro . FT232RL handle communication of uart using any micro controller.

If you want a RS232 then you need a MAX232 (or similar) for level shifting.
The FT232RL has no RS232 compatible level shifting inside.

Klaus