25 Mbps full-duplex transceiver for RS-485/RS-422 buses
The SN65HVD179DG4: Rated for 25 Mbps signaling, it fits high-speed differential bus applications where the data rate demands more than the typical 10-20 Mbps ceiling of slower RS-485 parts. The 50 mV receiver hysteresis filters noise on long cable runs — a practical margin for industrial backplanes where ground differentials and reflections degrade the signal edge.
Supply and temperature range for industrial environments
Surface-mount 8-SOIC (0.154" width, 3.90 mm body) footprint matches a common PCB land pattern; the tube packaging suits low-to-mid volume assembly without reel fees.
Active lifecycle and sourcing posture
No official successor has been published; the base product number 65HVD179 shares the same die family as the SN65HVD178 series, but the '179 is a full-duplex variant while the '178 is half-duplex — a direct drop-in replacement is not pin-compatible without a board change.