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RMele.1
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since ‎2020-02-01
‎2023-06-14

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We have some problems with the ST485BDR product we when apply the 120 Ohm load resistor

2020-02-02
We produced a 4 channels RS232 to 485/422 converters using a FTDI4232 and four ST485BDR. When apply the 120 Ohm load resistor, some ST485BDR send the pin 1 to low state, lighting the RX LED.When the pin 1 goes low, the RX LED remain lite. If I touch ...

Dear, we have a problem whith some ST485BDR. When the 120 ohm load resistor is applied, the pin 1 goes to low state, lighting the green RX LED

2020-02-01
This board perform 4 channels UART to RS485/422 conversion, using a FT4232 device and four ST485BDR devices. The issue is present in some channels in aleatory way. When I replace the failed ST485BDR device by the MAX485ESA the issued chanel start to ...
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