Part Number: THVD1424
I recently respun a design to sub in your THVD1424RGTR RS485 device because it has programmable termination. That is the only change. This effort required changing the layout copper due to pinout differneces.
The previous design used a simpler device from Holt industries. The previous rev board with Holt makes it to 120degC.
That is, pinging this device, it returns a proper understandable respopnse.
Now tha we have changed to your device, it does not reurn a proper response above 82degC even though the spec claims 125degC as the upper limit. It works fine below this temperature.
Above 82dewgC it does respond, however some character in the response string is subtley different above 82degC.
Termination or not makes no difference.
Please advise.
