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Analog Devices MAX6343MUT+T — Microcontrollers & Processors (MCU / MPU / DSP)
Analog Devices

MAX6343MUT+T Analog Devices Simple Reset/Power-On Reset

MPNMAX6343MUT+T
End of Life

Analog Devices MAX6343MUT+T Simple Reset/Power-On Reset supervisor, Active Low Open Drain output, 4.38V threshold, 100ms timeout, SOT-23-6, -40°C to 125°C.

$3.64Ref. price · indicative, final on quote
PackagingSOT-23-6
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

MAX6343MUT+T Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold4.38V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout100ms Minimum
CaseSOT-23-6

Product details

4.38V threshold supervisor for a single supply rail

The MAX6343MUT+T is a simple reset/power-on reset supervisor from Analog Devices, monitoring a single voltage rail with a 4.38V threshold. When the monitored supply drops below that threshold, the active-low open-drain output asserts reset and holds it for a minimum of 100ms after the rail recovers — long enough for the downstream MCU or DSP to complete its power-on reset sequence.

Active lifecycle and sourcing posture

The part is ROHS3 compliant. For current pricing and availability, submit an RFQ; we source through independent distribution and confirm lot traceability and manufacturer warranty at quote time.

Housed in a SOT-23-6 (SOT-6 supplier package) surface-mount package. The 100ms minimum reset timeout is a fixed internal delay; no external capacitor is needed to set the timeout.

Frequently asked questions

What does the 4.38V threshold mean for my 5V rail?

The 4.38V threshold is the falling trip point — when the monitored 5V supply drops below 4.38V, the reset output asserts. This is typical for a 5V nominal rail with a ±10% tolerance window, catching brownouts before the logic supply drops out of the guaranteed operating range.

What is the output type and how do I use it?

The reset output is open-drain, active low. Connect a pull-up resistor (typically 10 kΩ to 100 kΩ) to the logic supply voltage. The output holds low during the reset timeout and releases to high-impedance when the supply is above the threshold and the timeout expires.