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MAX811REUS+T
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Analog Devices Inc Maxim Integrated Supervisor And Reset ICs, SOT-143-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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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README
markdownMAX811REUS+T
Analog Devices Inc Maxim Integrated · Supervisor And Reset ICs · SOT-143-4
MAX811REUS+T from Analog Devices Inc Maxim Integrated, 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 | GND | power_in | Ground reference pin for the supervisor. |
| 2 | RESET | output | Active-low reset output that is guaranteed to be a logic low for VCC > 1V and remains low while VCC is below the reset threshold or MR is held low, plus the reset timeout period (tRP) after those conditions end. |
| 3 | MR | input | Active-low manual reset input with an internal 20kΩ pull-up (10-30kΩ over the electrical characteristics limits) that asserts reset when pulled low, accepts TTL/CMOS or open-drain drive, and can be left open if unused. |
| 4 | VCC | power_in | Supply voltage input (+5V, +3.3V or +3V nominal) monitored against the reset threshold, with a 1.2V minimum operating voltage and a -0.3V to 6.0V absolute maximum rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOT-143-4 |
| Category | Power Management (PMIC) |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reset Threshold (MAX811R, TA = +25°C) | VTH | 2.58 | 2.63 | 2.68 | V | TA = +25°C | 2 |
| Reset Threshold (MAX811R, TA = -40°C to +85°C) | VTH | 2.55 | 2.7 | V | TA = -40°C to +85°C | 2 | |
| Operating Voltage Range | VCC | 1.2 | V | TA = -40°C to +85°C | 2 | ||
| Operating Voltage Range | VCC | 1 | 5.5 | V | TA = 0°C to +70°C | 2 | |
| Supply Current (MAX81_R/S/T) | ICC | 2.7 | 10 | µA | VCC = 3V (R version), TA = -40°C to +85°C | 2 | |
| Reset Active Timeout Period | tRP | 140 | 560 | ms | 2 | ||
| VCC to Reset Delay | 20 | 40 | µs | 2 | |||
| MR to Reset Propagation Delay | tMD | 0.5 | µs | 2 | |||
| MR Minimum Pulse Width | tMR | 10 | µs | 2 | |||
| MR Pull-Up Resistance | 10 | 20 | 30 | kΩ | 2 | ||
| RESET Output Voltage Low (MAX811R/S/T) | VOL | 0.3 | V | ISINK = 1.2mA, VCC = VTH(MIN) | 3 | ||
| RESET Output Voltage Low (all MAX811 versions) | VOL | 0.3 | V | ISINK = 50µA, VCC > 1.0V | 3 | ||
| Reset Threshold Tempco | 30 | ppm/°C | 2 | ||||
| MR Glitch Immunity | 100 | ns | Glitches of 100ns or less typically do not generate a reset pulse (Note 3) | 2 | |||
| Absolute Maximum: Terminal Voltage VCC (with respect to GND) | VCC | -0.3 | 6 | V | with respect to GND | 2 | |
| Absolute Maximum: All Other Inputs (with respect to GND) | -0.3 | V | with respect to GND; upper limit is (VCC + 0.3V) | 2 | |||
| Absolute Maximum: Input Current, VCC, MR | 20 | mA | VCC and MR pins | 2 | |||
| Absolute Maximum: Output Current, RESET or RESET | 20 | mA | RESET or RESET output | 2 | |||
| Operating Temperature Range | TA | -40 | 85 | °C | 2 | ||
| Storage Temperature Range | TSTG | -65 | 160 | °C | 2 | ||
| Lead Temperature (soldering, 10 sec) | 300 | °C | soldering, 10 sec | 2 |
CAD (KiCad official)
- Symbol:
MAX811REUS+T - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143-4 (KiCad packages3D, STEP)
- 3D model files:
max811reus-t-etched.step/max811reus-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max811reus-t.step/max811reus-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (9 pp, sha256
07d226ae9e0b7d3e, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).