component
UM3488EESA
Public Made by Adomby adom
Union Semiconductor RS-485/RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+11−8@@ -32,19 +32,19 @@ "number": "1", "name": "VCC", "type": "power_in",- "description": "Positive supply input. Operating range 3.135V \u2264 VCC \u2264 3.465V (nominal +3.3V \u00b15%). Absolute maximum +7V. Typical quiescent current 180\u00b5A."+ "description": "Positive supply input. Operating range 3.135V ≤ VCC ≤ 3.465V (nominal +3.3V ±5%). Absolute maximum +7V. Typical quiescent current 180µA." }, { "number": "2", "name": "RO", "type": "output",- "description": "Receiver output. RO is high when the receiver differential input A\u2212B \u2265 \u221250mV, and low when A\u2212B \u2264 \u2212200mV. CMOS-level output; VOH \u2265 VCC\u22120.4V at IO=\u22124mA, VOL \u2264 0.4V at IO=4mA."+ "description": "Receiver output. RO is high when the receiver differential input A−B ≥ −50mV, and low when A−B ≤ −200mV. CMOS-level output; VOH ≥ VCC−0.4V at IO=−4mA, VOL ≤ 0.4V at IO=4mA." }, { "number": "3", "name": "DI", "type": "input",- "description": "Driver input. A logic low on DI forces the non-inverting output (Y) low and the inverting output (Z) high; a logic high on DI drives Y high and Z low. VIH \u2265 2.0V, VIL \u2264 0.8V, ~100mV input hysteresis."+ "description": "Driver input. A logic low on DI forces the non-inverting output (Y) low and the inverting output (Z) high; a logic high on DI drives Y high and Z low. VIH ≥ 2.0V, VIL ≤ 0.8V, ~100mV input hysteresis." }, { "number": "4",@@ -56,25 +56,25 @@ "number": "5", "name": "Y", "type": "output",- "description": "Non-inverting differential driver output (RS-422). Driven high or low relative to Z per DI state, always enabled on UM3488 (no DE pin). \u00b115kV HBM ESD protected; short-circuit current \u00b1250mA."+ "description": "Non-inverting differential driver output (RS-422). Driven high or low relative to Z per DI state, always enabled on UM3488 (no DE pin). ±15kV HBM ESD protected; short-circuit current ±250mA." }, { "number": "6", "name": "Z", "type": "output",- "description": "Inverting differential driver output (RS-422), complementary to Y. Always enabled on UM3488. \u00b115kV HBM ESD protected; short-circuit current \u00b1250mA."+ "description": "Inverting differential driver output (RS-422), complementary to Y. Always enabled on UM3488. ±15kV HBM ESD protected; short-circuit current ±250mA." }, { "number": "7", "name": "B", "type": "input",- "description": "Inverting differential receiver input (RS-422). Together with A forms the receiver differential pair; VTH typ \u2212125mV. Fail-safe guarantees RO=high if the bus is open, shorted, or terminated with no active driver. 1/8-unit-load input (RIN \u2265 96k\u03a9) allowing 256 transceivers on the bus."+ "description": "Inverting differential receiver input (RS-422). Together with A forms the receiver differential pair; VTH typ −125mV. Fail-safe guarantees RO=high if the bus is open, shorted, or terminated with no active driver. 1/8-unit-load input (RIN ≥ 96kΩ) allowing 256 transceivers on the bus." }, { "number": "8", "name": "A", "type": "input",- "description": "Non-inverting differential receiver input (RS-422). Together with B forms the receiver differential pair. Common-mode range \u22127V to +12V; \u00b115kV HBM ESD protected; 1/8-unit-load (RIN \u2265 96k\u03a9)."+ "description": "Non-inverting differential receiver input (RS-422). Together with B forms the receiver differential pair. Common-mode range −7V to +12V; ±15kV HBM ESD protected; 1/8-unit-load (RIN ≥ 96kΩ)." } ], "provenance": {@@ -138,5 +138,8 @@ "docs/um3488eesa-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }