Maxim Integrated MAX6323FUT26, Watchdog Circuit, Active Low Reset, Push-Pull Output, 100ms Minimum Reset Timeout, 2.63V Threshold, SOT-23-6, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Type | Watchdog Circuit |
| Mounting | Surface Mount |
| Voltage - threshold | 2.63V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C ~ 125°C (TA) |
| Reset | Active Low |
| Output | Push-Pull, Totem Pole |
| Package | Bulk |
| Reset timeout | 100ms Minimum |
| Case | SOT-23-6 |
The minimum 100ms reset pulse gives the power supply time to stabilize and the microcontroller time to start up cleanly.
For a BOM freeze or a new design, this part doesn't carry obsolescence risk today. This variant is RoHS non-compliant.
The reset timeout is 100ms minimum. That's the guaranteed pulse width the part holds reset low after the monitored rail returns above the 2.63V threshold.
No. The 2.63V threshold is designed for a 3.3V rail. On a 5V supply the threshold would trip at roughly half the nominal voltage, which is too low to protect 5V logic from a brownout. For a 5V rail, look for a supervisor with a threshold around 4.63V in the same family.