SP3485EN-L Electronic IC Chips Low Power Half-Duplex RS-485 Transceiver

SP3485

+3.3V Low Power Half-Duplex RS-485 Transceiver with 10Mbps Data Rate

• RS-485 and RS-422 Transceiver

• Operates from a single +3.3V Supply

• Interoperable with +5.0V logic

• Driver/Receiver Enable

• -7V to +12V Common-Mode Input Voltage Range

• Allows up to 32 transceivers on the serial bus

• Compatibility with industry standard 75176 pinout

• Driver Output Short-Circuit Protection

DESCRIPTION

The SP3485 device is a +3.3V low power half-duplex transceiver that meets the specifications of the RS-485 and RS-422 serial protocols. This device is pin-to-pin compatible with the Exar SP481, SP483 and SP485 devices as well as popular industry standards. The SP3485 features the Exar BiCMOS process, allowing low power operation without sacrificing performance. The SP3485 can meet the electrical specifications of the RS-485 and RS-422 serial protocols up to 10Mbps under load.

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.

V_CC.....................................................................+6.0V

Input Voltages

Logic....................................-0.3V to +6.0V

Drivers.................................-0.3V to +6.0V

Receivers.........................................+/-15V

Output Voltages

Drivers.............................................+/-15V

Receivers............................-0.3V to +6.0V

Storage Temperature.......................-65˚C to +150˚C

Power Dissipation

8-pin NSOIC...................................................600mW

(derate 6.90mW/ºC above +70ºC)

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