st485erb STMicroelectronics, st485erb Datasheet
st485erb
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st485erb Summary of contents
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... Allows up to 256 transceivers on the bus Description The ST485ERB is al low power transceiver for RS-485 and RS-422 communication. Each driver output and receiver input is protected against ±15 kV electrostatic discharge (HBM) ± (IEC- 1000-4-2 contact discharge) shocks, without latch-up ...
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Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Pin settings Figure 1. Pin configuration Table 2. Pin description Pin n° Symbol RO Receiver output RE Receiver output enable DE Driver output enable DI Driver input GND Ground A Non-inverting ...
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Truth tables Table 3. Truth table (driver Note Don’t care High impedance Table 4. Truth table (receiver Note Don’t care High impedance ...
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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 6. ESD performance: transmitter outputs, receiver inputs Symbol ESD ESD protection voltage ESD ESD protection voltage ± °C A Table 7. DC electrical characteristics ...
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Table 7. DC electrical characteristics (continued) Symbol Parameter ( load supply current CC Driver short-circuit current, I OSD1 V =High O Driver short-circuit current, I OSD2 V =Low O Receiver short-circuit I OSR current 1. All currents into ...
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V ± °C) A Table 9. Receiver switching characteristics Symbol Parameter t Propagation delay input PLH t to output PHL Differential receiver t SKD skew t Output enable time ...
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Test circuit and typical characteristics Figure 2. Driver DC test load Figure 4. Drive/receiver timing test circuit Figure 3. Receiver timing test load Figure 5. Driver timing test load 9/19 ...
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Figure 6. Driver propagation delay Figure 7. Driver enable and disable time 10/19 ...
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Figure 8. Receiver propagation delay Figure 9. Receiver enable and disable time 11/19 ...
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Figure 10. Receiver output current vs. output low voltage Figure 12. Driver output current vs. output low voltage Figure 14. Supply current vs. temperature 12/19 Figure 11. Receiver output current vs. output high voltage Figure 13. Driver output current vs. ...
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Figure 16. Receiver low level output voltage vs. temperature Figure 17. Differential driver output voltage vs. temperature 13/19 ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at ...
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Plastic DIP-8 mechanical data mm. Dim. Min. Typ. A 3.3 a1 0.7 B 1.39 B1 0.91 b 0 8.8 e 2.54 e3 7. 3.3 Z 0.44 inch. Max. Min. Typ. 0.130 ...
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Dim. Min. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 16/19 SO-8 mechanical data mm. Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 ...
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Tape & reel SO-8 mechanical data mm. Dim. Min. Typ 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 inch. Max. Min. Typ. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 ...
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Revision history Table 10. Document revision history Date Revision 21-Mar-2006 3 01-Aug-2006 4 25-Oct-2006 5 02-Dec-2008 6 16-Feb-2008 7 18/19 Changes Order codes has been updated and new template. Mistake in cover page description 300 mA ==> 300 µA. ...
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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. ...