| Part number | PST3449 |
|---|---|
| Manufacturer | ETC |
| File Size | 177.66 KB |
| Description | CMOS System Reset |
| Datasheet |
 PST3449 Datasheet
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| Note |
This datasheet PDF includes multiple part numbers: PST3449, PST. Please refer to the document for exact specifications by model. |
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of Operation (1) VDD > VS, VOUT: H (M1: ON, M2, M3: OFF) When VDD is gradually lowered from the above state, detection voltage is as follows.Detection voltage: (R1 + R2 + R3) / (R2 + R3) VREF (2) VDD < VS, VOUT: L (M1: OFF, M2, M3: ON) When VDD is gradually raised from the above state, release voltage is as follows.Release voltage = (R1 + R2) / (R2) VREF (3) Hysteresis voltage = (release voltage) - (detection voltage).(4) When VDD drops and goes below the minimum operating voltage, output is
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