Datasheet for the TMS75176B, a Texas Instruments differential bus transceiver for RS-485 and RS-422 links, a variant of the widely used 75176 family. The 192 KB PDF details pinout, driver and receiver enable logic, common-mode range, supply requirements and package options. In repair it helps diagnose failed fieldbus or serial lines in industrial controllers, check A and B line levels and confirm direction control. Surge damage is common on these chips, so inspect protection parts around it too.
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