component
UM811RE
Public Made by Adomby adom
Union Semiconductor Supervisor And Reset ICs, SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Active-low reset output for the UM811 (CMOS push-pull, sources and sinks current); it stays low while VCC is below the reset threshold or while MR is held low, and for the reset active timeout period tRP (140 to 560 ms, 240 ms typical) after reset conditions end."
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},
{
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"name": "VCC",
"type": "power_in",
"description": "Monitored supply input (+5 V, +3.3 V or +3 V nominal) with an operating range of 1.0 V to 5.5 V and an absolute maximum rating of -0.3 V to +6.0 V."
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"at": "2026-10-18T09:53:25"
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"Package": "SOT-143",
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"min": 1,
"typ": null,
"max": 5.5,
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{
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{
"name": "MR to Reset Propagation Delay",
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{
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{
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{
"name": "MR Glitch Immunity",
"symbol": "",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 100,
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{
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"conditions": "Soldering, 10s",
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