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DS481 - Low Power RS-485/RS-422 Multipoint Transceiver with Sleep Mode

Description

The DS481 is a low-power transceiver for RS-485 and RS-422 communication.

The device contains one driver and one receiver.

The drivers slew rate allows for operation up to 2.0 Mbps (see Applications Information section).

Features

  • n n n n n n n Meets TIA/EIA RS-485 multipoint standard Sleep mode reduces ICC to 0.2 µA Guaranteed full load output voltage (V OD3) Low quiescent current: 200 µA typ.
  • 7V to +12V common-mode input voltage range TRI-STATE outputs on driver and receiver AC performance:.
  • Driver transition time: 25 ns typ.
  • Driver propagation delay: 40 ns typ.
  • Driver skew: 1 ns typ.
  • Receiver propagation delay: 200 ns typ.
  • Receiver skew: 20 ns typ Half-duplex flow th.

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DS481 Low Power RS-485/RS-422 Multipoint Transceiver with Sleep Mode July 1998 DS481 Low Power RS-485/RS-422 Multipoint Transceiver with Sleep Mode General Description The DS481 is a low-power transceiver for RS-485 and RS-422 communication. The device contains one driver and one receiver. The drivers slew rate allows for operation up to 2.0 Mbps (see Applications Information section). The transceiver draws 200 µA of supply current when unloaded or 0.2 µA when in the automatic sleep mode. Sleep mode is activated by inactivity on the enables (DE and RE (Note 1)). Holding DE = L and RE (Note 1) = H for greater than 600 ns will enable the sleep mode. The DS481 operates from a single +5V supply.
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