FEATURES
■RS-485 and RS-422 Transceivers
■Operates from a single +3.3V supply
■Interoperable with +5.0V logic
■Driver/Receiver Enable
■Low Power Shutdown Mode (SP3481)
■-7V to +12V Common-Mode InputVoltage Range
■Allows up to 32 transceivers onthe serial bus
■Compatibility with the industrystandard 75176 pinout
■Driver Output Short-Circuit Protection

DESCRIPTION
The SP3481and the SP3485are a family of +3.3V low power half-duplex transceivers thatmeet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with the Sipex SP481, SP483, and SP485 devices as well as popular industrystandards. The SP3481and the SP3485feature Sipex's BiCMOS process, allowing low poweroperation without sacrificing performance. The SP3481and SP3485meet the electricalspecifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3481is equipped with a low power Shutdown mode.+3.3V Low Power Half-Duplex RS-485Transceivers with 10Mbps Data Rate