SP3483

® SP3483 +3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver s s s s s s s s s s 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) 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. This 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. RO 1 RE 2 DE 3 DI 4 R 8 Vcc 7 B 6 A D SP3483 5 GND SP3483 DS/04 SP3483 Low Power Slew Rate Limited Half-Duplex RS485 Transceivers © Copyright 2000 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCC......................................