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| PartNumber | MAX491ECSD+ | MAX491ECPD+ | MAX491ECPD+T |
| Description | RS-422/RS-485 Interface IC RS-485/RS-422 Transceiver | RS-422/RS-485 Interface IC RS-485/RS-422 Transceiver | |
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | RS-422/RS-485 Interface IC | RS-422/RS-485 Interface IC | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | SOIC-14 | PDIP-14 | - |
| Series | MAX491E | MAX491E | - |
| Function | Transceiver | Transceiver | - |
| Data Rate | 2.5 Mb/s | 2.5 Mb/s | - |
| Number of Drivers | 1 Driver | 1 Driver | - |
| Number of Receivers | 1 Receiver | 1 Receiver | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Operating Supply Current | 300 uA | 300 uA | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tube | Tube | - |
| Height | 1.5 mm (Max) | 4.45 mm (Max) | - |
| Input Voltage | 0.8 V to 2 V | 5 V | - |
| Length | 8.75 mm (Max) | 19.43 mm (Max) | - |
| Output Voltage | 3 V | - 8 V to 12.5 V | - |
| Width | 4 mm (Max) | 7.87 mm (Max) | - |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Duplex | Full Duplex | Full Duplex | - |
| Pd Power Dissipation | 667 mW | 800 mW | - |
| Product Type | RS-422/RS-485 Interface IC | RS-422/RS-485 Interface IC | - |
| Propagation Delay Time | 40 ns, 60 ns | - | - |
| Factory Pack Quantity | 50 | 25 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Part # Aliases | MAX491E | MAX491E | - |
| Unit Weight | 0.011923 oz | 0.057144 oz | - |
| Output Current | - | 35 mA to 250 mA | - |