SN75176BP

SN75176BP is a Texas Instruments SN75176B differential bus transceiver in PDIP-8, tube packing — the classic single-chip RS-485/RS-422 physical layer for multipoint buses in industrial controls, building automation and legacy equipment still built around through-hole assembly. It meets or exceeds TIA/EIA-422-B, TIA/EIA-485-A and ITU V.11/X.27, with separate driver and receiver enables, tri-state outputs, ±60 mA driver current limiting, thermal shutdown and a receiver with 12 kΩ minimum input impedance, ±200 mV sensitivity and 50 mV typical hysteresis — up to 32 unit loads share one twisted pair from a single 5 V supply over a -7 V to +12 V common-mode range. Selection advice: the P suffix is the PDIP-8 — for surface-mount production the SN75176BDR (SOIC-8, tape and reel) is the same silicon in a different package, and the SN65176B is a different TI transceiver, not an alias of this part; mind the 0 to +70 °C commercial range of the BP code when the cabinet runs hot. TI lists the SN75176BP as Active (Production); parameters verified against the TI SN75176B datasheet and Package Option Addendum.