1FEATURES
• Bus-Pin Fault Protection to > ±70 V
• Common-Mode Voltage Range (–20 V to 25 V)
More Than Doubles TIA/EIA 485 Requirement
• Bus I/O Protection
– ±16 kV JEDEC HBM Protection
• Reduced Unit Load for Up to 256 Nodes
• Failsafe Receiver for Open-Circuit, Short-
Circuit and Idle-Bus Conditions
• Low Power Consumption
– Low Standby Supply Current, 1 μA Typ
– ICC 5 mA Quiescent During Operation
• Power-Up, Power-Down Glitch-Free Operation

APPLICATIONS
• Designed for RS-485 and RS-422 Networks

SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability

DESCRIPTION
The SN65HVD1792 is designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring
faults, connector failures, cable crushes, and tool mis-applications. It is also robust to ESD events, with high
levels of protection to human-body model specifications.
The SN65HVD1792 combines a differential driver and a differential receiver, which operate from a single power
supply. The SN65HVD1792 is characterized from –40°C to 105°C.