component
DS89C21TMX
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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page.json+9−6@@ -44,7 +44,7 @@ "number": "2", "name": "RO", "type": "output",- "description": "Receiver TTL/CMOS-compatible output; drives HIGH (VOH 3.8-4.9V typ, IOH=-6mA) when RI-RI* differential input is \u2265+200mV or open, and LOW (VOL \u22640.3V, IOL=6mA) when differential input is \u2264-200mV."+ "description": "Receiver TTL/CMOS-compatible output; drives HIGH (VOH 3.8-4.9V typ, IOH=-6mA) when RI-RI* differential input is ≥+200mV or open, and LOW (VOL ≤0.3V, IOL=6mA) when differential input is ≤-200mV." }, { "number": "3",@@ -62,25 +62,25 @@ "number": "5", "name": "DO*", "type": "output",- "description": "Inverting (complementary) differential driver output; differential output voltage 2.0-3.0V into a 100\u03a9 load, complementary to DO."+ "description": "Inverting (complementary) differential driver output; differential output voltage 2.0-3.0V into a 100Ω load, complementary to DO." }, { "number": "6", "name": "DO", "type": "output",- "description": "Non-inverting differential driver output; unloaded output voltage 4.2-6.0V, differential output voltage 2.0-3.0V into a 100\u03a9 load, follows DI input state."+ "description": "Non-inverting differential driver output; unloaded output voltage 4.2-6.0V, differential output voltage 2.0-3.0V into a 100Ω load, follows DI input state." }, { "number": "7", "name": "RI*", "type": "input",- "description": "Inverting differential receiver input; differential threshold \u00b1200mV, absolute maximum input voltage \u00b114V, input impedance 5.0-9.5k\u03a9."+ "description": "Inverting differential receiver input; differential threshold ±200mV, absolute maximum input voltage ±14V, input impedance 5.0-9.5kΩ." }, { "number": "8", "name": "RI", "type": "input",- "description": "Non-inverting differential receiver input; differential threshold \u00b1200mV (failsafe HIGH output when open/non-terminated), absolute maximum input voltage \u00b114V, input impedance 5.0-9.5k\u03a9."+ "description": "Non-inverting differential receiver input; differential threshold ±200mV (failsafe HIGH output when open/non-terminated), absolute maximum input voltage ±14V, input impedance 5.0-9.5kΩ." } ], "provenance": {@@ -160,5 +160,8 @@ "docs/ds89c21tmx-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }