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Analog Devices DS1232LPS-2+T&R — Power Management (PMIC / Gate Driver)

DS1232LPS-2+T&R Simple Reset/Power-On Reset

MPNDS1232LPS-2+T&R
End of Life

Maxim Integrated DS1232LPS-2+T&R MicroMonitor™ Simple Reset/Power-On Reset, 1-channel supervisor, Active High/Active Low, Open Drain/Push-Pull, 4.37V/4.62V threshold, Adjustable/Selectable timeout, 0°C~70°C, 8-SOIC.

$4.89Ref. price · indicative, final on quote
Analog Devices DS1232LPS-2+T&R datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesMicroMonitor™
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DS1232LPS-2+T&R specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesMicroMonitor™
MountingSurface Mount
Voltage - threshold4.37V, 4.62V
Number of voltages monitored1
Operating temperature0°C ~ 70°C (TA)
ResetActive High/Active Low
OutputOpen Drain, Push-Pull
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeoutAdjustable/Selectable
Case8-SOIC (0.154\", 3.90mm Width)

Product details

What this supervisor does for a 5V rail

It is a Simple Reset/Power-On Reset type, meaning it holds the processor in reset during power-up and brown-out conditions until the supply stabilizes and the reset timeout expires. The reset output can be configured as either active-high, active-low, open-drain, or push-pull, giving the designer flexibility to interface with different processor reset architectures.

Reset timeout — adjustable, not fixed

The reset timeout period is adjustable or selectable via an external capacitor on the TD pin. This allows the designer to tailor the delay to the processor's power-up sequence — a longer timeout for a slow-starting supply or a shorter one for a fast-ramping rail. No capacitor gives a nominal timeout; adding capacitance extends it proportionally.

It is a current-production part, which means no supply-chain pressure from obsolescence for new designs.

Frequently asked questions

Can DS1232LPS-2+T&R replace DS1232LPS-2 without T&R?

Yes. The T&R suffix indicates Tape & Reel packaging; the die and electrical specifications are identical to the DS1232LPS-2. The non-T&R version ships in tubes or cut tape. For a BOM that specifies the tube variant, the T&R version is a drop-in replacement — just account for the different packaging medium.

How do I set the reset timeout on DS1232LPS-2+T&R?

Connect a capacitor between the TD pin and ground. With no capacitor, the timeout defaults to a nominal value. Adding capacitance increases the timeout period proportionally. The datasheet provides a capacitor-value vs. timeout table; select the capacitor that matches your processor's required reset hold time.

What is DS1232LPS-2+T&R's listed type?

The device type is Simple Reset/Power-On Reset, meaning it monitors the supply voltage and generates a reset signal on power-up and during brown-out conditions.

What is DS1232LPS-2+T&R's listed reset polarity?

The reset output can be configured as either active-high or active-low, and as either open-drain or push-pull. This flexibility allows it to interface with processors that require either polarity.