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Analog Devices MAX6315US30D2+T — Discrete Semiconductors

MAX6315US30D2+T Simple Reset/Power-On Reset IC, 3V Threshold

MPNMAX6315US30D2+T
End of Life

Maxim Integrated MAX6315US30D2+T, Simple Reset/Power-On Reset, Active Low, Open Drain, 20ms Minimum Timeout, 3V Threshold, -40°C to 125°C, SOT-143-4.

$5.73Ref. price · indicative, final on quote
PackagingTO-253-4, TO-253AA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6315US30D2+T specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold3V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageStrip
Reset timeout20ms Minimum
CaseTO-253-4, TO-253AA

Product details

What this reset monitor does

The Maxim Integrated MAX6315US30D2+T is a simple reset/power-on reset IC that monitors a single supply rail and asserts a reset signal when the voltage drops below a 3V threshold. The reset output is active-low, open-drain — meaning it pulls low when triggered and requires an external pull-up resistor to hold the line high during normal operation.

The 3V threshold is set for a 3.0V nominal supply rail, not a 3.3V rail. If your system runs on 3.3V, this part will assert reset at 3V.

Open-drain output — wiring note

Because the output is open-drain, you must add a pull-up resistor to hold the RST line high during normal operation. The SOT-143-4 package is a compact surface-mount footprint.

Frequently asked questions

Is MAX6315US30D2+T compatible with 3.3V microcontrollers?

The 3V threshold is lower than a 3.3V rail. It will assert reset at 3V, which is about 91% of nominal 3.3V — acceptable for many MCUs, but verify the processor's minimum operating voltage and brown-out detection range.

How long is the reset timeout for MAX6315US30D2+T?

The minimum reset timeout is 20ms. This gives the power supply and oscillator time to stabilize before the processor starts.