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Analog Devices MAX823TEUK — Discrete Semiconductors

MAX823TEUK Simple Reset/Power-On Reset, Active Low, 140ms

MPNMAX823TEUK
End of Life

MAX823TEUK, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 3.08V Threshold, 140ms Minimum Reset Timeout, -40°C to 125°C, SOT-23-5.

$1.59Ref. price · indicative, final on quote
Analog Devices MAX823TEUK datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX823TEUK specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold3.08V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageBulk
Reset timeout140ms Minimum
CaseSC-74A, SOT-753

Product details

The MAX823TEUK is a simple reset/power-on reset supervisor IC from Maxim Integrated. It monitors a single voltage rail and asserts a reset signal when the supply drops below the 3.08 V threshold, holding reset for a minimum of 140 ms after the rail recovers. The push-pull, active-low output drives directly into the reset input of an MCU, DSP, or FPGA without an external pull-up resistor.

RoHS non-compliant — check your BOM requirements

The MAX823TEUK is marked RoHS non-compliant. That means it contains lead (Pb) in the solder finish or internal construction, which exempts it from ROHS restrictions only if your product falls under a specific exemption (e.g., medical, aerospace, or high-reliability industrial). For EU or China RoHS markets, you will need a compliant alternate — the MAX823TEUK+T is the lead-free version, though the evidence does not confirm exact pin compatibility. Verify the alternate before swapping.

That makes it safe to specify into new designs and stable for ongoing production builds.

Frequently asked questions

What is the reset timeout of MAX823TEUK?

The reset timeout is a minimum of 140 ms. After the monitored voltage rises above the 3.08 V threshold, the reset output stays low for at least 140 ms before releasing, giving the system clock time to stabilise.

Is MAX823TEUK active low or active high?

The reset output is active low. The push-pull output goes low when the monitored voltage falls below the threshold and stays low through the timeout period, then returns high.