The SN65HVD888 is a low-power RS-485 transceiver with automatic bus-polarity correction
and transient protection. Upon hot plug-in, the device detects and corrects the bus polarity within
the first 76 ms of bus idling. On-chip transient protection protects the device against IEC61000
ESD and EFT transients. This device has robust drivers and receivers for demanding industrial
applications. The bus pins are robust to electrostatic discharge (ESD) events, with high levels of
protection to Human-Body Model (HBM), Air-Gap Discharge, and Contact Discharge specifications.
The device combines a differential driver and a differential receiver, which operate
together from a single 5-V power supply. The driver differential outputs and the receiver
differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire
bus) communication. The device features a wide common-mode voltage range making the device suitable
for multi-point applications over long cable runs. The SN65HVD888 is available in an SOIC-8
package, and is characterized from –40°C to 125°C.
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