 |  | | |
| PartNumber | SN74F251BN | SN74F251BD | SN74F251BDR |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 1-of-8 Data Slctr/ Mltplxr W/3-St Otpt | Encoders, Decoders, Multiplexers & Demultiplexers 1 to 8 w/Tri-St Out | Encoders, Decoders, Multiplexers & Demultiplexers 1-of-8 Data Slctr/ Mltplxr W/3-St Otpt |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | Y |
| Product | Selectors / Multiplexers | Selectors / Multiplexers | Selectors / Multiplexers |
| Logic Family | F | F | F |
| Number of Input Lines | 8 Input | 8 Input | 8 Input |
| Number of Output Lines | 1 Output | 1 Output | 1 Output |
| Propagation Delay Time | 9.5 ns | 9.5 ns | 9.5 ns |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Package / Case | PDIP-16 | SOP-16 | SOP-16 |
| Packaging | Tube | Tube | Reel |
| Function | Multiplexer | The output neither drives nor loads the bus significantly | Multiplexer |
| Height | 4.57 mm | 1.58 mm | 1.58 mm |
| Length | 19.3 mm | 9.9 mm | 9.9 mm |
| Number of Circuits | Single | Single | Single |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | 0 C to + 70 C |
| Series | SN74F251B | SN74F251B | SN74F251B |
| Technology | Bipolar | Bipolar | Bipolar |
| Width | 6.35 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Data Selectors/Multiplexers | Data Selectors/Multiplexers | Data Selectors/Multiplexers |
| High Level Output Current | - 3 mA | - 3 mA | - 3 mA |
| Low Level Output Current | 24 mA | 24 mA | 24 mA |
| Maximum Clock Frequency | 70 MHz | 70 MHz | 70 MHz |
| Operating Supply Voltage | 5 V | 5 V | 5 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 25 | 40 | 2500 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.033570 oz | 0.004998 oz | 0.004998 oz |
| Input Voltage | - | - 1.2 V to + 7.0 V | - |
| Output Current | - | 48 mA | - |
| Output Voltage | - | - 0.5 V to + 5.5 V | - |