These devices are designed to survive overvoltage faults such as direct shorts to power
supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. They are
also robust to ESD events, with high levels of protection to human-body model specifications.
These devices combine a differential driver and a differential receiver, which operate
from a single power supply. The driver differential outputs and the receiver differential inputs
are connected internally to for a bus port suitable for half-duplex (two-wire bus) communication. A
cable invert pin (INV) allows active correction of mis-wires that may occur during installation.
Upon detecting communication errors, the user can apply a logic HIGH to the INV pin, effectively
inverting the polarity of the differential bus port, thereby correcting for the reversed bus wires.
These devices feature a wide common-mode voltage range, making them suitable for
multi-point applications over long cable runs. These devices are characterized from –40°C to 105°C.
For similar features with 3.3 V supply operation, see the SN65HVD1781 (SLLS877).
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