Datasheet Details
| Part number | UM3089E |
|---|---|
| Manufacturer | Union Semiconductor |
| File Size | 658.83 KB |
| Description | Hot-Swappable Auto Polarity Reversal RS-485 Transceivers |
| Datasheet |
 UM3089E Datasheet
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General Description
The UM3089E series are +5.0V-powered, ±15kV ESD protected, fail-safe, hot-swappable, auto polarity reversal RS-485 transceivers.
The device includes fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open, shorted or idle.
Key Features
- reduced slew-rate driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission up to 500kbps. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model and IEC61000-4-2, Air-Gap Discharge. The UM3089E includes cable auto-invert functions that reverse the polarity of the RS485 bus pins in case the cable is misconnected. Receiver’s full fail-sa.