SP490E/491E Enhanced Full Duplex RS-485 Transceivers
FEATURES +5V Only Low Power BiCMOS Driver/Receiver Enable (SP491E)
RS-485 and RS-422 Drivers/Receivers Pin Compatible with LTC490 and
SN75179 (SP490E) Pin Compatible with LTC491 and
SN75180 (SP491E) Improved ESD Specifications:
±15kV Human Body Model ±15kV IEC61000-4-2 Air Discharge
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