Nine-channel RS-422/485 transceiver for multi-drop backplanes
9/9 driver/receiver count — sizing the bus node count
With nine drivers and nine receivers on one die, this part consolidates what would otherwise require multiple single-channel transceivers. The half-duplex architecture means each channel shares a single differential pair for transmit and receive, controlled by the driver enable — standard for RS-485 multi-drop networks.
Supply and temperature — 5 V only, industrial range
The supply range is strictly 4.75V to 5.25V — this is a 5 V part, not a 3.3 V device. If the board runs a 3.3 V rail, this transceiver needs its own 5 V supply or a level translator.