The SN65HVD08 combines a 3-state differential line driver and differential line receiver
designed for balanced data transmission and interoperation with ANSI TIA/EIA-485-A and ISO-8482E
standard-compliant devices.
The wide supply voltage range and low quiescent current requirements allow the SN65HVD08s
to operate from a 5-V power bus in the cable with as much as a 2-V line voltage drop. Busing power
in the cable can alleviate the need for isolated power to be generated at each connection of a
ground-isolated bus.
The driver differential outputs and receiver differential inputs connect internally to
form a differential input/output (I/O) bus port that is designed to offer minimum loading to the
bus whenever the driver is disabled or not powered. The drivers and receivers have active-high and
active-low enables respectively, which can be externally connected together to function as a
direction control.
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