STMicroelectronics ST485ECDR Linear IC User Manuals

Table of Contents

• Table 1. Device summary

  1
• 1 Pin configuration

  3
  • Figure 1. Pin connections (top view)

    3
  • Table 2. Pin description

    3
• 2 Truth tables

  4
  • Table 3. Truth table (driver)

    4
  • Table 4. Truth table (receiver)

    4
• 3 Maximum ratings

  5
  • Table 5. Absolute maximum ratings

    5
• 4 Electrical characteristics

  6
  • Table 6. ESD performance: transmitter outputs, receiver inputs

    6
  • Table 7. DC electrical characteristics

    6
  • Table 8. Driver switching characteristics

    7
  • Table 9. Receiver switching characteristics

    8
• 5 Test circuit and typical characteristics

  9
  • Figure 2. Driver DC test load

    9
  • Figure 3. Receiver timing test load

    9
  • Figure 4. Drive/receiver timing test circuit

    9
  • Figure 5. Driver timing test load

    9
  • Figure 6. Driver propagation delay

    10
  • Figure 7. Driver enable and disable time

    10
  • Figure 8. Receiver propagation delay

    11
  • Figure 9. Receiver enable and disable time

    11
  • Figure 10. Receiver output current vs. output low voltage

    12
  • Figure 11. Receiver output current vs. output high voltage

    12
  • Figure 12. Driver output current vs. output low voltage

    12
  • Figure 13. Driver output current vs. output high voltage

    12
  • Figure 14. Supply current vs. temperature

    12
  • Figure 15. Receiver high level output voltage vs. temperature

    12
  • Figure 16. Receiver low level output voltage vs. temperature

    13
  • Figure 17. Differential driver output voltage vs. temperature

    13
• 6 Package mechanical data

  14
• 7 Revision history

  17
  • Table 10. Document revision history

    17