# MAX6751KA29+T

**Maxim Integrated** · Monitors & Reset Circuits · SOT-23-8

MAX6751KA29+T from Maxim Integrated, in a SOT-23-8. 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 | RESET IN | input | High-impedance input to the adjustable reset comparator (threshold 1.235V typ); connect to the center point of an external resistor divider to set the monitored voltage threshold. |
| 2 | SWT | passive | Watchdog timeout input; a capacitor to ground sets tWD = 4.94 x 10^6 x CSWT (seconds, Farads), and connecting SWT to ground disables the watchdog timer. |
| 3 | SRT | passive | Reset timeout input; a capacitor from SRT to GND sets tRP = 4.94 x 10^6 x CSRT (seconds, Farads). |
| 4 | GND | power_in | Ground. |
| 5 | WDS | input | Watchdog select input; connect to ground for normal mode or to VCC for extended mode (basic timeout multiplied by 128), and a change of state clears the watchdog timer. |
| 6 | WDI | input | Watchdog input; a falling transition must occur within the selected watchdog timeout period or a reset pulse occurs, it must not be left floating, and a 100k resistor to ground is recommended when the watchdog is unused. |
| 7 | RESET | output | Open-drain active-low reset output (MAX6751) that asserts when VCC or RESET IN drops below its threshold or on a watchdog fault, and stays low for the reset timeout period after all reset conditions deassert; may be pulled up to 0 to 6V. |
| 8 | VCC | power_in | Supply voltage input and input for the fixed-threshold VCC monitor; operates from 1.0V to 5.5V (1.2V to 5.5V for TA = -40°C to 0°C). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SOT-23-8 |
| Category | Power Management ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `MAX6751KA29+T`
- Footprint: `Package_TO_SOT_SMD:SOT-23-8`
- 3D model: SOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `max6751ka29-t-etched.step` / `max6751ka29-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max6751ka29-t.step` / `max6751ka29-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Maxim Integrated datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max6746-max6753.pdf) (15 pp, sha256 `144a666c7b8478b6`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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](docs/max6751ka29-t-datasheet.pdf)