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MIC811TUY-TR

Public Made by Adom

by adom

Microchip Supervisor and Reset ICs, SOT-143-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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MIC811TUY-TR

Microchip · Supervisor and Reset ICs · SOT-143-4

MIC811TUY-TR from Microchip, in a SOT-143-4. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in IC ground reference pin. Connect to system ground.
2 /RESET output Active-low reset output, push-pull. Goes low when VCC falls below the reset threshold (3.08 V typ. for -T option) and remains asserted for one reset timeout period (140 ms min., 240 ms typ., 560 ms max.) after VCC returns above threshold. Guaranteed valid down to VCC = 1 V; no external pull-up required.
3 /MR input Manual Reset input, active low. A logic low forces /RESET asserted; reset remains asserted while /MR is held low and for one timeout period (140 ms min.) after /MR returns high. Internal 10-30 kΩ pull-up (20 kΩ typ.); min pulse width 10 µs; glitch immunity ~100 ns. Compatible with switch-to-GND, CMOS, or TTL drive. Leave floating if unused.
4 VCC power_in Power supply input, 1.0 V to 5.5 V operating range (absolute max 6.0 V). Monitored against the internal 3.08 V (typ.) reset threshold for the -T option. Typical supply current 5 µA.

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-143-4
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • MIC811TUY-TR

CAD (KiCad official)

  • Symbol: MIC811TUY-TR
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143-4 (KiCad packages3D, STEP)
  • 3D model files: mic811tuy-tr-etched.step / mic811tuy-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic811tuy-tr.step / mic811tuy-tr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mic811tuy-tr.step 75 KB You want the bare part, or you mark your own boards.
mic811tuy-tr-etched.step 1.7 MB You want the part with MIC811TUY-TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 438 faces against 87 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip datasheet (7 pp, sha256 fce23a1c1fca92e8, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF