I want to establish UART communication between LPC2138 (3.3V) and ATmega88(5V). But since they are at different power logic level, i need bidirectional level translator in between both devices.
I come up with following part
As seen on above site, module has MOSFET, resistors and capacitors mounted on PCB. I want to know, Can it work in my case ( for UART comm )?
If TXB0104 is device used for interfacing, is below connection correct? Please check pin mapping and is there any pull up needed at LPC2138 or ATmega88 side or shown connection is enough.