Voltage thresholds and reset timing — the numbers that matter
That is a deliberate, relatively long delay — it gives bulk capacitors on the supply rails time to charge up before the processor's reset pin is released.
MAX6721UTVHD3-T Multi-Voltage Supervisor
MPNMAX6721UTVHD3-T
End of Life
Maxim Integrated MAX6721UTVHD3-T Multi-Voltage Supervisor, 2 channels, thresholds 1.313V and 1.575V, Active Low open-drain output, 140ms min reset timeout, -40°C to 85°C, SOT-23-6.
$1.84Ref. price · indicative, final on quote
PackagingSOT-23-6
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Multi-Voltage Supervisor |
| Mounting | Surface Mount |
| Voltage - threshold | 1.313V, 1.575V |
| Number of voltages monitored | 2 |
| Operating temperature | -40°C ~ 85°C |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Bulk |
| Reset timeout | 140ms Minimum |
| Case | SOT-23-6 |
Product details
Frequently asked questions
What is the typical reset timeout for MAX6721UTVHD3-T?
The reset timeout is a minimum of 140ms. The output stays low for at least that long after all monitored voltages rise above their thresholds.
Can MAX6721UTVHD3-T be used to replace MAX6720?
The MAX6720 is a different variant in the same family with different voltage thresholds. The MAX6721UTVHD3-T monitors 1.313V and 1.575V; check the MAX6720 datasheet to see if those thresholds match your rails. Pin compatibility depends on the specific variant — verify the pinout before substituting.