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SN888C - Bus-Polarity Correcting RS-485 Transceiver

Description

The SN888C is a low-power RS-485 transceiver with bus-polarity correction and transient protection.

Upon hot plug-in the device detects and corrects the bus polarity within the first 76 ms of bus idling.

On-chip transient protection protects the device against IEC61000 ESD and EFT transients.

Features

  • 1.
  • Exceeds Requirements of EIA-485 Standard.
  • Bus-Polarity Correction within 76 ms.
  • Data Rate: 300 bps to 250 kbps.
  • Works with Two Configurations:.
  • Failsafe Resistors Only.
  • Failsafe and Termination Resistors.
  • Up to 256 Nodes on a Bus.
  • SOIC-8 Package for Backward Compatibility.
  • Bus-Pin Protection:.
  • ±16 kV HBM protection.
  • ±12 kV IEC61000-4-2 Contact Discharge.
  • +4 kV IEC61000-4-4 Fast Transien.

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Full PDF Text Transcription

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SN888C www.ti.com SLLSEI4 – SEPTEMBER 2013 Bus-Polarity Correcting RS-485 Transceiver for E-Meters Check for Samples: SN888C FEATURES 1 • Exceeds Requirements of EIA-485 Standard • Bus-Polarity Correction within 76 ms • Data Rate: 300 bps to 250 kbps • Works with Two Configurations: – Failsafe Resistors Only – Failsafe and Termination Resistors • Up to 256 Nodes on a Bus • SOIC-8 Package for Backward Compatibility • Bus-Pin Protection: – ±16 kV HBM protection – ±12 kV IEC61000-4-2 Contact Discharge – +4 kV IEC61000-4-4 Fast Transient Burst APPLICATIONS • E-meters DESCRIPTION The SN888C is a low-power RS-485 transceiver with bus-polarity correction and transient protection. Upon hot plug-in the device detects and corrects the bus polarity within the first 76 ms of bus idling.
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