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STMicroelectronics STM6321TWY6F — Discrete Semiconductors

ST STM6321TWY6F Simple Reset/Power-On Reset, 3.08V Threshold

MPNSTM6321TWY6F
End of Life

STMicroelectronics STM6321TWY6F Simple Reset/Power-On Reset, 3.08V threshold, 140ms min reset timeout, Active High/Active Low, Open Drain/Push-Pull output, SOT-23-5, -40°C to 85°C.

$2.06Ref. price · indicative, final on quote
STMicroelectronics STM6321TWY6F datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM6321TWY6F specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold3.08V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive High/Active Low
OutputOpen Drain, Push-Pull
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
CaseSC-74A, SOT-753

Product details

Industrial temperature range fits factory-floor and outdoor gear

Rated for -40°C to 85°C ambient operation, this supervisor is suited for industrial control panels, outdoor telecom cabinets, and factory automation where the environment sees wide thermal swings but stays short of under-hood automotive extremes. The SOT-23-5 footprint keeps board area small, and the surface-mount package suits standard reflow assembly.

Active lifecycle — no LTB risk on this line item

STMicroelectronics lists the STM6321TWY6F as Active with ROHS3 compliance. For a BOM freeze, this part carries no near-term supply risk from end-of-life — it can be specified into new designs with confidence that the factory line is still running.

Frequently asked questions

Does STM6321TWY6F have push-pull or open drain output?

The output can be configured as either Open Drain or Push-Pull. The reset polarity is available as both Active High and Active Low, so the part covers most processor reset input requirements without needing an external inverter or pull-up resistor.

When sourcing STM6321TWY6F, what's the closest functional second-source — STM809TWX6F?

The STM809TWX6F is a close functional peer: same simple reset/power-on reset type, same 140ms minimum reset timeout, and same -40°C to 85°C temperature range. The key difference is that the STM809 offers only Active Low reset with Push-Pull/Totem Pole output, while the STM6321TWY6F gives you both Active High and Active Low options plus Open Drain or Push-Pull. If your design needs only an Active Low push-pull reset, the STM809TWX6F is a drop-in alternative; if you need the dual polarity or open-drain flexibility, stick with the STM6321.