Quad RS-485/422/423 receiver — receiver-only, not a transceiver
The SN65175D is a Texas Instruments quad line receiver supporting RS-422, RS-423, and RS-485 protocols. It contains four independent receivers in a single 16-SOIC package — no drivers on-chip, so the BOM must supply a separate RS-485 driver if bidirectional communication is required. Operating from a single 4.75V to 5.25V supply, the part delivers 50 mV of hysteresis to reject differential noise on long cable runs — a practical margin for industrial backplanes and factory-floor fieldbuses where ground potential differences can reach several volts.
Active production — order without lifecycle concern
Because the part is current and the SOIC-16 footprint is a JEDEC standard, it can be placed alongside other 16-SOIC parts on the same pick-and-place reel with no special handling.
Packaged in 16-SOIC — standard footprint, dual sourcing
The 16-SOIC (0.154-inch body width, 3.90 mm) uses a common land pattern shared across many TI and third-party RS-485 receivers. The surface-mount package reflows on a standard lead-free profile without a dedicated bake if the MSL is MSL-1 (no moisture sensitivity level is cited, but SOIC-16 is typically MSL-1). Supply decoupling is sufficient for the 50 mV hysteresis to hold its noise margin.