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| PartNumber | SN75121NSR | SN75121N | SN75121NS |
| Description | Buffers & Line Drivers Dual HS Line | Buffers & Line Drivers Dual Line Driver/LIN | Line Driver, 2 Func, 2 Driver, BIPolar, PDSO16 |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Buffers & Line Drivers | Buffers & Line Drivers | - |
| RoHS | Y | Y | - |
| Number of Input Lines | 2 Input | 2 Input | - |
| Number of Output Lines | 2 Output | 2 Output | - |
| Supply Voltage Max | 5.25 V | 5 V | - |
| Supply Voltage Min | 4.75 V | 4.75 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | SO-16 | PDIP-16 | - |
| Packaging | Reel | Tube | - |
| Function | Line Transmitter | Line Transmitter | - |
| Height | 1.95 mm | 4.57 mm | - |
| Length | 10.3 mm | 19.3 mm | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Series | SN75121 | SN75121 | - |
| Width | 5.3 mm | 6.35 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Operating Supply Current | 60 mA | 60 mA | - |
| Operating Supply Voltage | 5 V | 0 V to 7 V | - |
| Product Type | Buffers & Line Drivers | Buffers & Line Drivers | - |
| Propagation Delay Time | 20 ns | 20 ns | - |
| Factory Pack Quantity | 2000 | 25 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.007079 oz | 0.033570 oz | - |
| Number of Channels | - | 2 | - |