ST3485ECDR STMicroelectronics, ST3485ECDR Datasheet
ST3485ECDR
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ST3485ECDR
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ST3485ECDR Summary of contents
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... All transmitter outputs and receiver inputs are protected to ±15 kV using Human Body Model. Table 1. Device summary Order code Temperature range ST3485ECN °C ST3485ECDR °C ST3485EBDR - °C November 2007 3.3 V powered ESD protected Mbps RS-485/RS-422 transceiver DIP-8 Driver is short-circuit current limited and is ...
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Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Pin configuration Figure 1. Pin connections Table 2. Pin description Pin n° Symbol 1 RO Receiver output. If A>B by 200mV, RO will be high; if A<B by 200mV, RO will be low Receiver output enable enabled ...
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Truth tables Table 3. Truth table (driver) Inputs Note: X= Don’t care; Z=High impedance Table 4. Truth table (receiver) Inputs Inputs ...
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Maximum ratings Table 5. Absolute maximum ratings Symbol V Supply voltage CC V Control input voltage (RE, DE Driver input voltage (DI Driver output voltage ( Receiver input voltage ( ...
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Electrical characteristics Table 7. Electrical characteristics 3 °C) A Symbol Parameter I V Power supply current No Load, DI= SUPPLY CC I Shutdown supply current ...
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Table 10. Receiver electrical characteristics 3 25°C) A Symbol Parameter Receiver differential V TH threshold voltage ΔV Receiver input hysteresis TH Receiver output high V OH voltage Receiver output ...
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Table 12. Receiver switching characteristics 3 °C) A Symbol Parameter t PLH Propagation delay t PHL | Propagation PLH - PHL t RPDS delay skew t ...
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Test circuits and typical characteristics Figure 2. Driver and V test load OC Figure 3. Driver V with varying common mode voltage test load OD Figure 4. Receiver V and V OH test circuit OL 9/22 ...
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Figure 5. Drive differential output delay transition time test circuit Figure 6. Drive differential output delay transition time waveform Figure 7. Drive enable and disable times test circuit 10/22 ...
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Figure 8. Drive enable and disable times waveforms Figure 9. Drive propagation time test circuit Figure 10. Drive propagation time waveform 11/22 ...
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Figure 11. Drive enable and disable times test circuit Figure 12. Drive enable and disable times waveforms Figure 13. Receiver propagation delay time test circuit 12/22 ...
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Figure 14. Receiver propagation delay time waveforms Figure 15. Receiver enable and disable times test circuit Figure 16. Receiver enable and disable times waveform 13/22 ...
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Figure 17. Receiver enable and disable times waveform Figure 18. Receiver enable and disable times waveform Figure 19. Receiver enable and disable times waveform 14/22 ...
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Figure 20. Receiver output current vs output low voltage Figure 22. Low level driver output capability Figure 24. Receiver input characteristics Figure 21. Receiver output current vs output high voltage Figure 23. High level driver output capability Figure 25. Driver ...
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Figure 26. Driver short circuit current 16/22 ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner ...
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Plastic DIP-8 mechanical data Dim. Min 0.7 B 1. 0.44 18/22 mm. Typ. Max. Min. 3.3 0.028 1.65 0.055 1.04 0.036 0.5 0.5 0.015 ...
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SO-8 mechanical data mm. Dim. Min. Typ. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4.80 E 3.80 e 1.27 H 5.80 h 0.25 L 0.40 k ddd inch. Max. Min. Typ. 1.75 0.053 0.25 0.04 1.65 ...
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Tape & reel SO-8 mechanical data Dim. Min 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 20/22 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 ...
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Revision history Table 13. Document revision history Date Revision 20-Jun-2005 2 30-Aug-2005 3 07-Apr-2006 4 12-Nov-2007 5 Changes Mistake on table ==> µs. ZL(SHDN) Remove (TRUE) on title, description has been updated in cover page. Δ ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...