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SN65HVD1785, SN65HVD1786, SN65HVD1787 SN65HVD1791, SN65HVD1792, SN65HVD1793
SLLS872J – JANUARY 2008 – REVISED MARCH 2023
SN65HVD17xx Fault-Protected RS-485 Transceivers With Extended Common-Mode Range
1 Features
• Bus-Pin Fault Protection to: – > ±70 V ('HVD1785, 86, 91, 92) – > ±30 V ('HVD1787, 93)
• 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 Typical – ICC 5 mA Quiescent During Operation • Power-Up, Power-Down Glitch-Free Operation
2 Applications
• Designed for RS-485 and RS-422 Networks
3 Description
These devices are desi