产品资料 SP3483 FEATURES · RS-485 and RS-422 Transceiver · Operates from a single +3.3V supply · Interoperable with +5.0V logic · Driver/Receiver Enable · Low Power Shutdown Mode · -7V to +12V Common-Mode Input Voltage Range · Allows up to 32 transceivers on the serial bus · Compatibility with the industry standard 75176 pinout · Driver Output Short-Circuit Protection · Slew Rate Limited Driver for Low EMI (SP3483) SP3483 DESCRIPTION The SP3483 device is part of a family of +3.3V low power half-duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. The SP3483 device is pin-to-pin compatible with the Sipex SP483 device as well as popular industry standards. The SP3483 features Sipex's BiCMOS process, allowing low power operation without sacrificing performance. The SP3483 is internally slew rate limited to reduce EMI and can meet the requirements of RS-485 and RS-422 up to 250kbps.