The person who designed the logic board for our product used the SN65ALS180 for our RS-485 tranceiver. However, he neglected to include the proper fail saif biasing hardware necessary to impliment a reliable RS485 bus. I have read about some transceivers that are designed with true full fail safe hardware already built in. For example, Intersil has the ISL3150E. Does Texas Instrurments have anything with full fail saife biasing built in?
Please help me find a replacement for the SN65ALS180. The replacement needs to maintain the same pin assignments and package size of the SN65ALS180 so that I don't have to change the foot print or re-manufacture the PCB. And ofcourse, the replacement would need to have all the necessary fail safe biasing built in to the IC.
Thank you.