francis29
Member level 5
I am using MAX3221MDBREP in my design. It was working fine. Suddenly is not working. When i checked with DSO, RX side is working ( RS-232 level to TTL level).
But TX side is not working (TTL level to RS-232). Getting 0 Volts at TX pin (DOUT). While visual inspection the top of the IC has brown color as it got heated somehow.
What could be the reason??
But TX side is not working (TTL level to RS-232). Getting 0 Volts at TX pin (DOUT). While visual inspection the top of the IC has brown color as it got heated somehow.
What could be the reason??