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| Part Number | MAX490ESA+ | MAX490ESA+T | MAX490CSA+ | MAX490ECSA+ | MAX490EESA+ | MAX490EPA+ | MAX490ESA | 
|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Product Status | Active | Active | Active | Active | Active | Active | Obsolete | 
| Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver | - | 
| Protocol | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | - | 
| Number of Drivers/Receivers | 1/1 | 1/1 | 1/1 | 1/1 | 1/1 | 1/1 | - | 
| Duplex | Full | Full | Full | Full | Full | Full | - | 
| Receiver Hysteresis | 70 mV | 70 mV | 70 mV | 70 mV | 70 mV | 70 mV | - | 
| Data Rate | 2.5Mbps | 2.5Mbps | 2.5Mbps | 2.5Mbps | 2.5Mbps | 2.5Mbps | - | 
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | - | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C | - | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole | - | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-DIP (0.300", 7.62mm) | - | 
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-PDIP | - |