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Analog Devices MAX6315US30D2+T — Discrete Semiconductors
Analog Devices

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
MAX6315US30D2+T datasheet
PackagingTO-253-4, TO-253AA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

MAX6315US30D2+T Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface 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 minimum reset timeout of 20ms gives the system regulator and oscillator time to stabilize before the processor starts executing code. Rated for -40°C to 125°C, this part fits into automotive under-hood, industrial motor-drive, or outdoor telecom equipment where the ambient temperature swings wide.

3V threshold — what it means for the rail

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.

Lifecycle and sourcing

No end-of-life notice or last-time-buy schedule is in effect, so it is safe to design into new BOMs today.

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.