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| PartNumber | SN74LS240N | SN74LS240NE4 | SN74LS240N3 |
| Description | Buffers & Line Drivers Octal Buffer/Line | Buffers & Line Drivers Octal Buffers and Line Drivers | Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin PDIP - Bulk (Alt: SN74LS240N3) |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Buffers & Line Drivers | Logic - Buffers, Drivers, Receivers, Transceivers | - |
| RoHS | Y | - | - |
| Number of Input Lines | 8 Input | 8 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Polarity | Inverting | Inverting | - |
| Supply Voltage Max | 5.25 V | - | - |
| Supply Voltage Min | 4.75 V | - | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | PDIP-20 | - | - |
| Packaging | Tube | Tube Alternate Packaging | - |
| Function | Buffer/Line Driver | - | - |
| Height | 4.57 mm | - | - |
| Length | 24.33 mm | - | - |
| Operating Temperature Range | 0 C to + 70 C | - | - |
| Output Type | 3-State | 3-State | - |
| Quiescent Current | 26 mA | - | - |
| Series | SN74LS240 | 74LS | - |
| Technology | Bipolar | - | - |
| Width | 6.35 mm | - | - |
| Brand | Texas Instruments | - | - |
| Logic Family | LS | LS | - |
| Logic Type | Bipolar | Buffer/Line Driver, Inverting | - |
| Number of Channels | 8 | 8 | - |
| Supply Current Max | 44000 uA | - | - |
| High Level Output Current | - 15 mA | - 15 mA | - |
| Input Signal Type | Single-Ended | - | - |
| Low Level Output Current | 24 mA | 24 mA | - |
| Operating Supply Current | 44 uA | 44 uA | - |
| Operating Supply Voltage | 5 V | - | - |
| Product Type | Buffers & Line Drivers | - | - |
| Propagation Delay Time | 18 ns at 5 V | 18 ns at 5 V | - |
| Factory Pack Quantity | 20 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.042297 oz | 0.042297 oz | - |
| Package Case | - | PDIP-20 | - |
| Operating Temperature | - | 0°C ~ 70°C | - |
| Mounting Type | - | Through Hole | - |
| Voltage Supply | - | 4.75 V ~ 5.25 V | - |
| Supplier Device Package | - | 20-PDIP | - |
| Number of Elements | - | 2 | - |
| Current Output High Low | - | 15mA, 24mA | - |
| Number of Bits per Element | - | 4 | - |
| Supply Voltage Max | - | 5.25 V | - |
| Supply Voltage Min | - | 4.75 V | - |