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STM812TW16F

Public Made by Adom

by adom

STMicroelectronics Supervisor And Reset ICs, SOT-143-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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STM812TW16F

STMicroelectronics · Supervisor And Reset ICs · SOT-143-4

STM812TW16F from STMicroelectronics, in a SOT-143-4. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VSS power_in Ground reference for the supervisor.
2 RST output Push-pull active-high reset output on the STM812 that asserts when VCC falls below the reset threshold or MR is low, and stays asserted for trec (140 ms min, 210 ms typ, 280 ms max) after release; it is guaranteed valid down to VCC = 1.0 V and can both source and sink current.
3 MR input Active-low manual reset input with an internal 20 kΩ pull-up (10 to 30 kΩ) that can be left open if unused; a low of at least 10 µs asserts reset, and a normally open push-button to GND needs no external debounce.
4 VCC power_in Supply voltage monitored against the reset threshold, operating range 1.2 to 5.5 V over -40 to +85 °C (1.0 to 5.5 V at 0 to +70 °C), with an absolute maximum of 7.0 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-143-4
Category Power Management (PMIC)
Pins 4

CAD (KiCad official)

  • Symbol: STM812TW16F
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143-4 (KiCad packages3D, STEP)
  • 3D model files: stm812tw16f-etched.step / stm812tw16f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm812tw16f.step / stm812tw16f.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (21 pp, sha256 24f3f88facdeb210, retrieved 2026-10-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF