Quad RS-422/RS-485 receiver for 3.3 V differential lines
Supply rail and noise margin
The 35 mV hysteresis per receiver is a practical margin for differential lines in electrically noisy industrial environments; it reduces the chance of output chatter when the differential input voltage hovers near the threshold on long twisted-pair runs.
Package and thermal pad: layout note
No special bake is required if the moisture barrier bag is intact and the floor-life window hasn't been exceeded — standard MSL handling applies.
