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| PartNumber | SP491CN-L | SP491CD | SP491CN |
| Description | RS-485 Interface IC RS485 5000 kbps temp 0C to 70C | Line Transceiver, 1-Driver, 1-Receiver, 14 Pin, Plastic, SOP | |
| Manufacturer | Exar Corporation | - | - |
| Product Category | Interface - Drivers, Receivers, Transceivers | - | - |
| Series | SP491 | - | - |
| Product | RS-485 Transceivers | - | - |
| Type | Transceiver | - | - |
| Packaging | Tube Alternate Packaging | - | - |
| Unit Weight | 0.008501 oz | - | - |
| Mounting Style | SMD/SMT | - | - |
| Tradename | Sipex | - | - |
| Package Case | SOIC-14 Narrow | - | - |
| Operating Temperature | 0°C ~ 70°C | - | - |
| Mounting Type | Surface Mount | - | - |
| Function | Transceiver | - | - |
| Voltage Supply | 4.75 V ~ 5.25 V | - | - |
| Supplier Device Package | 14-SOIC | - | - |
| Protocol | RS422, RS485 | - | - |
| Data Rate | 5Mbps | - | - |
| Number of Drivers Receivers | 2016/1/1 | - | - |
| Duplex | Full | - | - |
| Receiver Hysteresis | 70mV | - | - |
| Shutdown | No Shutdown | - | - |
| Pd Power Dissipation | 1000 mW | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Operating Supply Current | 900 uA | - | - |
| Number of Drivers | 1 Driver | - | - |
| Number of Receivers | 1 Receiver | - | - |